7906 datasheet(425/531 Pages) RENESAS

425 / 531 page

7906 Group User’s Manual Rev.2.0

APPENDIX

20-20

Appendix 2. Control registers

7 to 2

Timer A clock division select register (Address 4516)

Timer A clock division select bits

The value is “0” at reading.

–

b7 b6 b5 b4 b3 b2 b1 b0

See Table 7.2.3.

Bit name

Bit

Function

At reset

R/W

Timer A0 register (Addresses 4716, 4616)

Timer A5 register (Addresses C716, C616)

Timer A1 register (Addresses 4916, 4816)

Timer A6 register (Addresses C916, C816)

Timer A2 register (Addresses 4B16, 4A16)

Timer A7 register (Addresses CB16, CA16)

Timer A3 register (Addresses 4D16, 4C16)

Timer A8 register (Addresses CD16, CC16)

Timer A4 register (Addresses 4F16, 4E16)

Timer A9 register (Addresses CF16, CE16)

Undefined

15 to 0 These bits have different functions according to the operating mode.

(b15)

(b8)

Note: Reading from or writing to this register must be performed in a unit of 16 bits.

Bit

Function

At reset

R/W

Operating mode select bits

(Note)

These bits have different functions according to the operating mode.

Timer Ai mode register (i = 0 to 4) (Addresses 5616 to 5A16)

Timer Ai mode register (i = 5 to 9) (Addresses D616 to DA16)

b7 b6 b5 b4 b3 b2 b1 b0

0 0 : Timer mode

0 1 : Event counter mode

1 0 : One-shot pulse mode

1 1 : Pulse width modulation (PWM) mode.

b1 b0

Bit name

Bit

Function

At reset

R/W

Reference

7-6

Reference

7-5

Reference

7-8

Note: For timers A3 and A5 to A8, fix these bits to “00”; do not select “012,” “102,” and “112.”

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