HMS87C5216 Datasheet, PDF (72/76 Pages) List of Unclassifed Manufacturers – CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER FOR UR(Universal Remocon) & WIRELESS KEYBOARD

HMS87C5216
Clock Control Register
CKCTLR
-
WAKEUP RCWDT WDTON BTCL BTS2
Symbol
WAKEUP
RCWDT
WDTON
BTCL
Function Description
1 : Enables Wake-up Timer
0 : Disables Wake-up Timer
1 : Enables Internal RC Watchdog Timer
0 : Disables Internal RC Watchdog Time
1 : Enables Watchdog Timer
0 : Operates as a 7-bit Timer
1 : BITR is cleared and BTCL becomes “0” automatically
after one machine cycle, and BITR continue to count-up
BTS1 BTS0
ADDRESS : ECH
RESET VALUE : -0010111
Bit Manipulation Not Available
Basic Interval Timer Clock Selection
000 : fxin ÷ 8
001 : fxin ÷ 16
010 : fxin ÷ 32
011 : fxin ÷ 64
100 : fxin ÷ 128
101 : fxin ÷ 256
110 : fxin ÷ 512
111 : fxin ÷ 1024
Figure 18-4 CKCTLR: Clock Control Register
SEP. 2004 Ver 1.01