H8S2245 datasheet(407/818 Pages) RENESAS

407 / 818 page

Section 10 8-Bit Timers

Rev.3.00 Mar. 26, 2007 Page 365 of 772

REJ09B0355-0300

10.1.3

Pin Configuration

Table 10.1 summarizes the input and output pins of the 8-bit timer.

Table 10.1

Input and Output Pins of 8-Bit Timer

Channel

Name

Symbol

I/O

Function

Timer output pin 0

TMO0

Output

Outputs at compare match

Timer clock input pin 0

TMCI0

Input

Inputs external clock for counter

Timer reset input pin 0

TMRI0

Input

Inputs external reset to counter

Timer output pin 1

TMO1

Output

Outputs at compare match

Timer clock input pin 1

TMCI1

Input

Inputs external clock for counter

Timer reset input pin 1

TMRI1

Input

Inputs external reset to counter

10.1.4

Table 10.2 summarizes the registers of the 8-bit timer module.

Table 10.2

8-Bit Timer Registers

Channel

Name

Abbreviation

R/W

Initial Value

Address*

Timer control register 0

TCR0

R/W

H'00

H'FFB0

Timer control/status register 0 TCSR0

R/(W)*

H'00

H'FFB2

Time constant register A0

TCORA0

R/W

H'FF

H'FFB4

Time constant register B0

TCORB0

R/W

H'FF

H'FFB6

Timer counter 0

TCNT0

R/W

H'00

H'FFB8

Timer control register 1

TCR1

R/W

H'00

H'FFB1

Timer control/status register 1 TCSR1

R/(W)*

H'10

H'FFB3

Time constant register A1

TCORA1

R/W

H'FF

H'FFB5

Time constant register B1

TCORB1

R/W

H'FF

H'FFB7

Timer counter 1

TCNT1

R/W

H'00

H'FFB9

All

Module stop control register

MSTPCR

R/W

H'3FFF

H'FF3C

Notes: 1. Lower 16 bits of the address

2. Only 0 can be written to bits 7 to 5, to clear these flags.

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