参数资料
型号: M38748EAF-XXXFS
厂商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 单芯片8位CMOS微机
文件页数: 40/92页
文件大小: 1292K
代理商: M38748EAF-XXXFS
40
3874 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Fig. 34 Block diagram of serial I/O3
Serial I/O3
Serial I/O3 has the following modes: 8-bit serial I/O, arbitrary bits
from 1 to 256 serial I/O, up to 256-byte auto-transfer serial I/O.
The 8-bit serial I/O transfers through serial I/O3 register (address
0013
16
). The arbitrary bits and auto-transfer serial I/O modes
transfer through the 256-byte serial I/O3 auto-transfer RAM (ad-
dresses 0200
16
to 02FF
16
).
The P8
5
/S
RDY3
, P8
6
/S
BUSY3
, and P8
7
/S
STB3
pins all have the
handshake input/output signal function and can perform active
logic high/low selection.
P8
5
/S
RDY3
P8
6
/S
BUSY3
pin
control bits
Main
data bus
Serial I/O3
automatic transfer
controller
Local
data bus
Serial I/O3 automatic
transfer RAM
(0200
16
to 02FF
16
)
Serial I/O3 automatic
transfer interval register
X
CIN
X
IN
Main clock division ratio
selection bits
Serial I/O3
automatic transfer
data pointer
Address decoder
Main
address bus
Local
address bus
“10”
“00,01,11”
D
1/4
1/8
1/16
1/32
1/64
1/128
1/256
1/512
Serial I/O3
interrupt request
P8
2
/S
OUT3
P8
3
/S
IN3
P8
3
latch
P8
6
latch
Serial I/O3 counter
Serial I/O3 register (8)
Synchronous
circuit
S
C
Serial transfer
selection bits
Serial I/O3
synchronous clock
selection bits
“01”
“00,10,11”
P8
5
latch
P8
4
/S
CLK3
“0”
“1”
“0”
“1”
External clock
Serial I/O3 internal
synchronous clock
selection bits
P8
7
latch
P8
6
/S
BUSY3
P8
7
/S
STB3
(P8
7
/S
STB3
pin control bits)
P8
5
/S
RDY3
P8
6
/S
BUSY3
pin
control bits
Serial transfer
status flag
“00,01”
“10,11”
“0”
“1”
P8
5
/S
RDY3
“0”
“1”
Transfer counter
P8
4
latch
Serial transfer
selection bits
相关PDF资料
PDF描述
M38748EAF-XXXGP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38748EDD-XXXFS SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38748EDD-XXXGP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38748EDF-XXXFS SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38748EDF-XXXGP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
相关代理商/技术参数
参数描述
M38748EAF-XXXGP 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38748EAT-XXXFS 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38748EAT-XXXGP 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38748EBD-XXXFS 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38748EBD-XXXGP 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER