z86e54 ZiLOG Semiconductor, z86e54 Datasheet - Page 48

• Manufacturer Part Number: z86e54
• Description: Z8 512 Byte Otp Mcu
• Manufacturer: ZiLOG Semiconductor

PS020102-1003
Bit
Position
7-2
1
0
Table 20. Prescaler 1 Register, R243 PRE1 F3h Bank 0h: WRITE ONLY
Bit
Position
7-0
Table 21. Port 2 Mode Register, R246 P2M F6h Bank 0h: WRITE ONLY
Table 22. Port 3 Mode Register, R247 P3M F7h Bank 0h: WRITE ONLY
Bit
R/W
Reset
Note: W = Write, X = Indeterminate
Bit
R/W
Reset
Note: W = Write
Bit
R/W
Reset
Note: W = Write, X = Indeterminate
Prescaler W
Clock
Count
Bit Field
P20-P27
W
W
W
X
X
7
7
1
7
Bit Field
W
W
R/W
W
W
W
X
X
6
6
1
6
R/W
W
X
0
0
W
W
W
X
X
5
5
1
5
Reset
Value
W
W
W
X
X
Reset
4
4
1
Value
4
Description
Prescaler Modulo
Range = 1-64 decimal; 01 h-00h
Clock Source
0: T1 External Timing Input (TIN) Mode
1: T1 Internal
T1 Count Mode
0: Single Pass
1: Modulo N
1
W
W
W
X
X
3
3
1
3
Description
P20-P27 I/O Definition
0: Defines bit as Output
1: Defines bit as Input
W
W
W
X
X
2
2
1
2
W
W
W
X
1
1
1
1
0
Z8
®
512 Byte OTP MCU
W
W
W
X
0
0
1
0
0
Z86E54
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