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at91_tc.h File Reference


Detailed Description

AT91 peripherals.

 *
 * $Log: at91_tc.h,v $
 * Revision 1.1  2006/07/05 07:45:28  haraldkipp
 * Split on-chip interface definitions.
 *
 *
 * 


Timer Counter Control Register

#define TC0_CCR   (TC_BASE + 0x00)
 Channel 0 control register address.
#define TC1_CCR   (TC_BASE + 0x40)
 Channel 1 control register address.
#define TC2_CCR   (TC_BASE + 0x80)
 Channel 2 control register address.
#define TC_CLKEN   0x00000001
 Clock enable command.
#define TC_CLKDIS   0x00000002
 Clock disable command.
#define TC_SWTRG   0x00000004
 Software trigger command.

Timer Counter Channel Mode Register

#define TC0_CMR   (TC_BASE + 0x04)
 Channel 0 mode register address.
#define TC1_CMR   (TC_BASE + 0x44)
 Channel 1 mode register address.
#define TC2_CMR   (TC_BASE + 0x84)
 Channel 2 mode register address.
#define TC_CLKS   0x00000007
 Clock selection mask.
#define TC_CLKS_MCK2   0x00000000
 Selects MCK / 2.
#define TC_CLKS_MCK8   0x00000001
 Selects MCK / 8.
#define TC_CLKS_MCK32   0x00000002
 Selects MCK / 32.
#define TC_CLKS_MCK128   0x00000003
 Selects MCK / 128.
#define TC_CLKS_MCK1024   0x00000004
 Selects MCK / 1024.
#define TC_CLKS_XC0   0x00000005
 Selects external clock 0.
#define TC_CLKS_XC1   0x00000006
 Selects external clock 1.
#define TC_CLKS_XC2   0x00000007
 Selects external clock 2.
#define TC_CLKI   0x00000008
 Increments on falling edge.
#define TC_BURST   0x00000030
 Burst signal selection mask.
#define TC_BURST_NONE   0x00000000
 Clock is not gated by an external signal.
#define TC_BUSRT_XC0   0x00000010
 ANDed with external clock 0.
#define TC_BURST_XC1   0x00000020
 ANDed with external clock 1.
#define TC_BURST_XC2   0x00000030
 ANDed with external clock 2.
#define TC_CPCTRG   0x00004000
 RC Compare Enable Trigger Enable.
#define TC_WAVE   0x00008000
 Selects waveform mode.
#define TC_CAPT   0x00000000
 Selects capture mode.

Capture Mode

#define TC_LDBSTOP   0x00000040
 Counter clock stopped on RB loading.
#define TC_LDBDIS   0x00000080
 Counter clock disabled on RB loading.
#define TC_ETRGEDG   0x00000300
 External trigger edge selection mask.
#define TC_ETRGEDG_RISING_EDGE   0x00000100
 Trigger on external rising edge.
#define TC_ETRGEDG_FALLING_EDGE   0x00000200
 Trigger on external falling edge.
#define TC_ETRGEDG_BOTH_EDGE   0x00000300
 Trigger on both external edges.
#define TC_ABETRG   0x00000400
 TIOA or TIOB external trigger selection mask.
#define TC_ABETRG_TIOB   0x00000000
 TIOB used as an external trigger.
#define TC_ABETRG_TIOA   0x00000400
 TIOA used as an external trigger.
#define TC_LDRA   0x00030000
 RA loading selection mask.
#define TC_LDRA_RISING_EDGE   0x00010000
 Load RA on rising edge of TIOA.
#define TC_LDRA_FALLING_EDGE   0x00020000
 Load RA on falling edge of TIOA.
#define TC_LDRA_BOTH_EDGE   0x00030000
 Load RA on any edge of TIOA.
#define TC_LDRB   0x000C0000
 RB loading selection mask.
#define TC_LDRB_RISING_EDGE   0x00040000
 Load RB on rising edge of TIOA.
#define TC_LDRB_FALLING_EDGE   0x00080000
 Load RB on falling edge of TIOA.
#define TC_LDRB_BOTH_EDGE   0x000C0000
 Load RB on any edge of TIOA.

Waveform Mode

#define TC_CPCSTOP   0x00000040
 Counter clock stopped on RC compare.
#define TC_CPCDIS   0x00000080
 Counter clock disabled on RC compare.
#define TC_EEVTEDG   0x00000300
 External event edge selection mask.
#define TC_EEVTEDG_RISING_EDGE   0x00000100
 External event on rising edge.
#define TC_EEVTEDG_FALLING_EDGE   0x00000200
 External event on falling edge.
#define TC_EEVTEDG_BOTH_EDGE   0x00000300
 External event on any edge.
#define TC_EEVT   0x00000C00
 External event selection mask.
#define TC_EEVT_TIOB   0x00000000
 TIOB selected as external event.
#define TC_EEVT_XC0   0x00000400
 XC0 selected as external event.
#define TC_EEVT_XC1   0x00000800
 XC1 selected as external event.
#define TC_EEVT_XC2   0x00000C00
 XC2 selected as external event.
#define TC_ENETRG   0x00001000
 External event trigger enable.
#define TC_ACPA   0x00030000
 Masks RA compare effect on TIOA.
#define TC_ACPA_SET_OUTPUT   0x00010000
 RA compare sets TIOA.
#define TC_ACPA_CLEAR_OUTPUT   0x00020000
 RA compare clears TIOA.
#define TC_ACPA_TOGGLE_OUTPUT   0x00030000
 RA compare toggles TIOA.
#define TC_ACPC   0x000C0000
 Masks RC compare effect on TIOA.
#define TC_ACPC_SET_OUTPUT   0x00040000
 RC compare sets TIOA.
#define TC_ACPC_CLEAR_OUTPUT   0x00080000
 RC compare clears TIOA.
#define TC_ACPC_TOGGLE_OUTPUT   0x000C0000
 RC compare toggles TIOA.
#define TC_AEEVT   0x00300000
 Masks external event effect on TIOA.
#define TC_AEEVT_SET_OUTPUT   0x00100000
 External event sets TIOA.
#define TC_AEEVT_CLEAR_OUTPUT   0x00200000
 External event clears TIOA.
#define TC_AEEVT_TOGGLE_OUTPUT   0x00300000
 External event toggles TIOA.
#define TC_ASWTRG   0x00C00000
 Masks software trigger effect on TIOA.
#define TC_ASWTRG_SET_OUTPUT   0x00400000
 Software trigger sets TIOA.
#define TC_ASWTRG_CLEAR_OUTPUT   0x00800000
 Software trigger clears TIOA.
#define TC_ASWTRG_TOGGLE_OUTPUT   0x00C00000
 Software trigger toggles TIOA.
#define TC_BCPB   0x03000000
 Masks RB compare effect on TIOB.
#define TC_BCPB_SET_OUTPUT   0x01000000
 RB compare sets TIOB.
#define TC_BCPB_CLEAR_OUTPUT   0x02000000
 RB compare clears TIOB.
#define TC_BCPB_TOGGLE_OUTPUT   0x03000000
 RB compare toggles TIOB.
#define TC_BCPC   0x0C000000
 Masks RC compare effect on TIOB.
#define TC_BCPC_SET_OUTPUT   0x04000000
 RC compare sets TIOB.
#define TC_BCPC_CLEAR_OUTPUT   0x08000000
 RC compare clears TIOB.
#define TC_BCPC_TOGGLE_OUTPUT   0x0C000000
 RC compare toggles TIOB.
#define TC_BEEVT   0x30000000
 Masks external event effect on TIOB.
#define TC_BEEVT_SET_OUTPUT   0x10000000
 External event sets TIOB.
#define TC_BEEVT_CLEAR_OUTPUT   0x20000000
 External event clears TIOB.
#define TC_BEEVT_TOGGLE_OUTPUT   0x30000000
 External event toggles TIOB.
#define TC_BSWTRG   0xC0000000
 Masks software trigger effect on TIOB.
#define TC_BSWTRG_SET_OUTPUT   0x40000000
 Software trigger sets TIOB.
#define TC_BSWTRG_CLEAR_OUTPUT   0x80000000
 Software trigger clears TIOB.
#define TC_BSWTRG_TOGGLE_OUTPUT   0xC0000000
 Software trigger toggles TIOB.

Counter Value Register

#define TC0_CV   (TC_BASE + 0x10)
 Counter 0 value.
#define TC1_CV   (TC_BASE + 0x50)
 Counter 1 value.
#define TC2_CV   (TC_BASE + 0x90)
 Counter 2 value.

Timer Counter Register A

#define TC0_RA   (TC_BASE + 0x14)
 Channel 0 register A.
#define TC1_RA   (TC_BASE + 0x54)
 Channel 1 register A.
#define TC2_RA   (TC_BASE + 0x94)
 Channel 2 register A.

Timer Counter Register B

#define TC0_RB   (TC_BASE + 0x18)
 Channel 0 register B.
#define TC1_RB   (TC_BASE + 0x58)
 Channel 1 register B.
#define TC2_RB   (TC_BASE + 0x98)
 Channel 2 register B.

Timer Counter Register C

#define TC0_RC   (TC_BASE + 0x1C)
 Channel 0 register C.
#define TC1_RC   (TC_BASE + 0x5C)
 Channel 1 register C.
#define TC2_RC   (TC_BASE + 0x9C)
 Channel 2 register C.

Timer Counter Status and Interrupt Registers

#define TC0_SR   (TC_BASE + 0x20)
 Status register address.
#define TC1_SR   (TC_BASE + 0x60)
 Status register address.
#define TC2_SR   (TC_BASE + 0xA0)
 Status register address.
#define TC0_IER   (TC_BASE + 0x24)
 Channel 0 interrupt enable register address.
#define TC1_IER   (TC_BASE + 0x64)
 Channel 1 interrupt enable register address.
#define TC2_IER   (TC_BASE + 0xA4)
 Channel 2 interrupt enable register address.
#define TC0_IDR   (TC_BASE + 0x28)
 Channel 0 interrupt disable register address.
#define TC1_IDR   (TC_BASE + 0x68)
 Channel 1 interrupt disable register address.
#define TC2_IDR   (TC_BASE + 0xA8)
 Channel 2 interrupt disable register address.
#define TC0_IMR   (TC_BASE + 0x2C)
 Channel 0 interrupt mask register address.
#define TC1_IMR   (TC_BASE + 0x6C)
 Channel 1 interrupt mask register address.
#define TC2_IMR   (TC_BASE + 0xAC)
 Channel 2 interrupt mask register address.
#define TC_COVFS   0x00000001
 Counter overflow flag.
#define TC_LOVRS   0x00000002
 Load overrun flag.
#define TC_CPAS   0x00000004
 RA compare flag.
#define TC_CPBS   0x00000008
 RB compare flag.
#define TC_CPCS   0x00000010
 RC compare flag.
#define TC_LDRAS   0x00000020
 RA loading flag.
#define TC_LDRBS   0x00000040
 RB loading flag.
#define TC_ETRGS   0x00000080
 External trigger flag.
#define TC_CLKSTA   0x00010000
 Clock enable flag.
#define TC_MTIOA   0x00020000
 TIOA flag.
#define TC_MTIOB   0x00040000
 TIOB flag.

Timer Counter Block Control Register

#define TC_BCR   (TC_BASE + 0xC0)
 Block control register address.
#define TC_SYNC   0x00000001
 Synchronisation trigger.

Timer Counter Block Mode Register

#define TC_BMR   (TC_BASE + 0xC4)
 Block mode register address.
#define TC_TC0XC0S   0x00000003
 External clock signal 0 selection mask.
#define TC_TCLK0XC0   0x00000000
 Selects TCLK0.
#define TC_NONEXC0   0x00000001
 None selected.
#define TC_TIOA1XC0   0x00000002
 Selects TIOA1.
#define TC_TIOA2XC0   0x00000003
 Selects TIOA2.
#define TC_TC1XC1S   0x0000000C
 External clock signal 1 selection mask.
#define TC_TCLK1XC1   0x00000000
 Selects TCLK1.
#define TC_NONEXC1   0x00000004
 None selected.
#define TC_TIOA0XC1   0x00000008
 Selects TIOA0.
#define TC_TIOA2XC1   0x0000000C
 Selects TIOA2.
#define TC_TC2XC2S   0x00000030
 External clock signal 2 selection mask.
#define TC_TCLK2XC2   0x00000000
 Selects TCLK2.
#define TC_NONEXC2   0x00000010
 None selected.
#define TC_TIOA0XC2   0x00000020
 Selects TIOA0.
#define TC_TIOA1XC2   0x00000030
 Selects TIOA1.


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