參數(shù)資料
型號: EM78P451S
廠商: ELAN Microelctronics Corp .
英文描述: Quad, Serial, 8-Bit DACs with Rail-to-Rail Outputs
中文描述: 8位微控制器的OTP ROM的
文件頁數(shù): 11/54頁
文件大?。?/td> 421K
代理商: EM78P451S
EM78P451S
8-Bit Microcontroller with OTP ROM
Product Specification (V1.0) 06.01.2004
(This specification is subject to change without further notice)
7
4.1.6 R5~R8 (Port 5 ~ Port8)
Four general 8 bits I/O registers
Both P74 and P76 read or write data from the DATA pin, while both P75 and P77
read or write data from the CLK pin.
4.1.7 R9 (Port9)
A general 6-bit I/O register. The values of the two most significant bits are read as
"0".
(Port9)
R9
IOC9
(I/O Port Control Register)
(SPI read buffer)
RA
Reserve
Reserve
(SPI write buffer)
RB
(SPI status buffer)
RC
(SPI control buffer)
RD
IOCC
(Timer1 Control Register)
IOCD
(Pull_high Control Register)
(WDT Control Register)
(Timer1 register)
RE
(Pulse width preset register)
RF
Aaddress
R PAGE registers
IOC PAGE registers
00
R0
(Indirect Addressing Register)
Reserve
01
R1
(Time Clock Counter)
CONT
(Control Register)
02
R2
(Program Counter)
Reserve
03
R3
(Status Register)
Reserve
04
R4
(RAM Select Register)
Reserve
05
R5
(Port5)
IOC5
(I/O Port Control Register)
06
R6
(Port6)
IOC6
(I/O Port Control Register)
07
R7
(Port7)
IOC7
(I/O Port Control Register)
08
09
0A
0B
0C
0D
0E
IOCE
0F
IOCF
(Interrupt Mask Register)
10
1F
General Registers
20
3E
Bank0
Bank1
Bank2
Bank3
3F
R3F
(Interrupt Status Register)
(Port8)
R8
IOC8
(I/O Port Control Register)
Fig. 4 Data memory configuration
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