參數(shù)資料
型號: MB90487PFV
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 16-bit Proprietary Microcontroller CMOS
中文描述: 16-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, LQFP-100
文件頁數(shù): 34/113頁
文件大?。?/td> 522K
代理商: MB90487PFV
MB90480/485 Series
34
3.
Expanded I/O Serial Interface
The expanded I/O serial interface is an 8-bit
×
1-channel serial I/O interface for clock synchronized data
transmission. A selection of LSB-first or MSB-first data transmission is provided.
There are two serial I/O operation modes.
Internal shift clock mode
External shift clock mode
(1) Register List
: Data transmission is synchronized with the internal clock siganl.
: Data transmission is synchronized with a clock signal input from the external
clock signal pin (SCK) . In this mode the general-purpose port that shares the
external clock signal pin (SCK) can be used for transmission according to
CPU instructions.
Serial mode control status register (SMCS)
Serial data register (SDR)
Communication prescaler control register (SDCR0, SDCR1)
Initial value
Address : 000027
H
00002B
H
00000010
B
Address : 000026
H
00002A
H
----0000
B
Address : 000028
H
00002C
H
XXXXXXXX
B
Address : 000029
H
00002D
H
0---0000
B
15
14
13
12
11
10
9
8
SMD1
SMD2
SMD0
SIE
SIR
BUSY
STOP
STRT
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7
6
5
4
3
2
1
0
MODE
BDS
SOE
SCOE
R/W
R/W
R/W
R/W
7
6
5
4
3
2
1
0
D6
D7
D5
D4
D3
D2
D1
D0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
15
14
13
12
11
10
9
8
R/W
MD
DIV3
DIV2
DIV1
DIV0
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