Samsung 8-Bit User Manual download pdf (Page 278)

100

101

CONTROL REGISTERS S3C9228/P9228

4-6

BTCON — Basic Timer Control Register DCH

Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0

RESETRESET Value

0 0 0 0 0 0 0 0

Read/Write

R/W R/W R/W R/W R/W R/W R/W R/W

.7-.4 Watchdog Timer Enable Bits

1 0 1 0 Disable watchdog function

Any other value Enable watchdog function

.3-.2 Basic Timer Input Clock Selection Bits

0 0 fxx/4096

0 1 fxx/1024

1 0 fxx/128

1 1 fxx/16

Basic Timer Counter Clear Bit

(1)

0 No effect

1 Clear the basic timer counter value (BTCNT)

Clock Frequency Divider Clear Bit for Basic Timer and Timer/Counters

(2)

0 No effect

1 Clear clock frequency dividers

NOTES

1. When "1" is written to BTCON.1, the basic timer counter value is cleared to "00H". Immediately following the write

operation, the BTCON.1 value is automatically cleared to "0".

2. When "1" is written to BTCON.0, the corresponding frequency divider is cleared to "00H". Immediately following the

write operation, the BTCON.0 value is automatically cleared to "0".

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Samsung 8-Bit User Manual Page 278

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