Z87C33 datasheet(39/72 Pages) ZILOG

39 / 72 page

PS015601-1003

Z87C33

CMOS Z8“ MCU Consumer Controller Processor

Counter/Timer 1 Register

The Counter/Timer 1 Register, T1, controls timing and counter functions. READ/

WRITE and reset states for bits D7–D0 are listed in Table 17.

Table 16. Timer Mode Register—TMR F1h/R241 Bank 0h: READ/WRITE

Bit

R/W

Reset State

000

Note: R = Read, W = Write.

Bit

Position

Bit

Field

R/W

Reset

State

Description

D7–D6

TOUT Mode

R/W

TOUT Mode

00: Off

01: T0 Output

10: T1 Output

11: Internal Clock Output

D5–D4

TIN Mode

R/W

TIN Mode

00: External Clock Input

01: Gate Input

10: Trigger Input (nonretriggerable)

11: Trigger Input (retriggerable)

T1 Count

R/W

T1 Count

0: Disable

1: Enable

R/W

0: No Function

1: Load T1

T0 Count

R/W

T0 Count

0: Disable

1: Enable

R/W

0: No Function

1: Load T0

Table 17. Counter/Timer 1 Register—T1 F2h/R242 Bank 0h: READ/WRITE

Bit

R/W

Z87C33 Datasheet(PDF) 39 Page - Zilog, Inc.

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