參數(shù)資料
型號: EM78P870
廠商: ELAN Microelctronics Corp .
元件分類: 8位微控制器
英文描述: 8 BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 37/48頁
文件大?。?/td> 313K
代理商: EM78P870
EM78P870
8-bit OTP Micro-controller
_________________________________________________________________________________________________________________________________________________________________
* This specification is subject to be changed without notice.
34
8/19/2004 (V1.5)
Bit 0 ~ Bit 7 (IOC80 ~ IOC87) : PORT8(0~7) I/O direction control register
0
put the relative I/O pin as output
1
put the relative I/O pin into high impedance
PAGE1 (Key strobe control register)
7
6
5
STRB23 STRB22
STRB21 STRB20
Bit 0 ~ Bit 7 (STRB16 ~ STRB23) : Key strobe control bits
These key strobe control registers correspond to SEGMENT16 to SEGMENT23. Please refer KEYSTOBE
explanation (RE page0).
IOC9 (PORT9 I/O control)
PAGE0 (PORT9 I/O control register)
7
6
5
4
3
IOC97
IOC96
IOC95
IOC94
IOC93
Bit 0 ~ Bit 7 (IOC90 ~ IOC97) : PORT9(0~7) I/O direction control register
0
put the relative I/O pin as output
1
put the relative I/O pin into high impedance
IOCA (CN1’s and CN2’s clock and scaling, PORT7 pull high control)
PAGE0 (Counter1’s and Counter2's clock and scale setting)
7
6
5
4
3
CNT2S
C2P2
C2P1
C2P0
CNT1S
Bit 0 ~ Bit 2 (C1P0 ~ C1P2) : Counter1 scaling
C1P2
C1P1
C1P0
COUNTER1
0
0
0
1:2
0
0
1
1:4
0
1
0
1:8
0
1
1
1:16
1
0
0
1:32
1
0
1
1:64
1
1
0
1:128
1
1
1
1:256
Bit 3 (CNT1S) : Counter1 clock source
0/1
16.384kHz/MCU clock
Bit 4 ~ Bit 6 (C2P0 ~ C2P2) : Counter2 scaling
C2P2
C2P1
C2P0
COUNTER2
0
0
0
1:2
0
0
1
1:4
0
1
0
1:8
0
1
1
1:16
1
0
0
1:32
1
0
1
1:64
1
1
0
1:128
1
1
1
1:256
Bit 7 (CNT2S) : Counter2 clock source
0/1
16.384kHz/MCU clock
4
3
2
1
0
STRB19
STRB18
STRB17 STRB16
2
1
0
IOC92
IOC91
IOC90
2
1
0
C1P2
C1P1
C1P0
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