T48C862-R8 datasheet(63/107 Pages) ATMEL

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T48C862-R8

4590B–4BMCU–02/03

Timer 3 Control Register 1

(T3C) Write

Primary register address: "C"hex - Write

Timer 3 Status Register 1

(T3ST) Read

Primary register address: "C"hex - Read

Note:

The status bits T3C1, T3C2 and T3ED will be reset after a READ access to T3ST.

Timer 3 Clock Select Register

(T3CS)

Address: "B"hex - Subaddress: "1"hex

Bit 3Bit 2Bit 1Bit 0

Write

T3EIM

T3TOP

T3TS

T3R

Reset value: 0000b

T3EIM

Timer 3 Edge Interrupt Mask

T3EIM = 0, disables the interrupt when an edge event for Timer 3 occurs (T3I)

T3EIM = 1, enables the interrupt when an edge event for Timer 3 occurs (T3I)

T3TOP

Timer 3 Toggle Output Preset

T3TOP = 0, sets toggle output (M3) to "0"

T3TOP = 1, sets toggle output (M3) to "1"

Note: If T3R = 1, no output preset is possible

T3TS

Timer 3 Toggle with Start T3TS = 0, Timer 3 output is not toggled during the start

T3TS = 1, Timer 3 output is toggled if started with T3R

T3R

Timer 3 Run

T3R = 0, Timer 3 stop and reset

T3R = 1, Timer 3 run

Bit 3Bit 2Bit 1Bit 0

Read

- - -

T3ED

T3C2

T3C1

Reset value: x000b

T3ED

Timer 3 Edge Detect

This bit will be set by the edge-detect logic of Timer 3 input (T3I)

T3C2

Timer 3 Compare 2

This bit will be set when a match occurs between Counter 3 and T3CO2

T3C1

Timer 3 Compare 1

This bit will be set when a match occurs between Counter 3 and T3CO1

Bit 3

Bit 2

Bit 1

Bit 0

T3CS

T3E1

T3E0

T3CS1

T3CS0

Reset value: 1111b

T3E1

Timer 3 Edge select bit 1

T3E1

T3E0

Timer 3 Input Edge Select (T3I)

T3E0

Timer 3 Edge select bit 0

- - -

Positive edge at T3I pin

Negative edge at T3I pin

Each edge at T3I pin

T48C862-R8 数据表(PDF) 63 Page - ATMEL Corporation

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T48C862-R8 数据表(PDF) 63 Page - ATMEL Corporation

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