GMS81C7216 Datasheet, PDF (41/121 Pages) List of Unclassifed Manufacturers – 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS81C7208/7216
The system clock is decided by bit1 (SYCC1) of the system clock
mode register(SCMR). On the initial reset, internal system clock
is PS1 which is the fastest and other clock can be provided by bit2
and bit3 of SCMR.
SCMR
R/W R/W R/W R/W
7
6
5
4
3
2
1
0
-
-
-
- BSTCCSL1 SCS0 SYCC1 SYCC0
ADDRESS: 0F5_H
INITIAL VALUE: 00_H
System (CPU) Clock Control
00: Main Clock On
01: Main Clock On
10: Reserved
11: Reserved
System Clock Source Select
00:
01:
10:
11:
XXXX^{IIINNNIN÷÷÷÷816264}
Figure 10-2 SCMR: System Clock Control Registers
FEB. 2005 Ver 1.04
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