HD6433644R datasheet(231/549 Pages) RENESAS

231 / 549 page

Section 9 Timers

Rev. 6.00 Sep 12, 2006 page 211 of 526

REJ09B0326-0600

Table 9.6 shows the register configuration of timer B1.

Table 9.6

Timer B1 Registers

Name

Abbr.

R/W

Initial Value

Address

Timer mode register B1

TMB1

R/W

H'78

H'FFB2

Timer counter B1

TCB1

H'00

H'FFB3

Timer load register B1

TLB1

H'00

H'FFB3

9.3.2

Timer Mode Register B1 (TMB1)

Bit

TMB17



TMB12

TMB11

TMB10

Initial value

Read/Write

R/W



R/W

TMB1 is an 8-bit read/write register for selecting the auto-reload function and input clock.

Upon reset, TMB1 is initialized to H'78.

Bit 7



Auto-Reload Function Select (TMB17): Bit 7 selects whether timer B1 is used as an

interval timer or auto-reload timer.

Bit 7: TMB17

Description

Interval timer function selected

(initial value)

Auto-reload function selected

Bits 6 to 3



Reserved Bits: Bits 6 to 3 are reserved; they are always read as 1, and cannot be

modified.

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