參數(shù)資料
型號: GMS81508B
廠商: Hynix Semiconductor Inc.
元件分類: 8位微控制器
英文描述: 8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 8位單晶片微控制器
文件頁數(shù): 54/110頁
文件大?。?/td> 1980K
代理商: GMS81508B
GMS81508B/16B/24B, GMS82512/16/24
MAY. 2001 Ver 2.0
51
13. SERIAL COMMUNICATION
- This function is NOT served on the GMS825xx.
The serial iterface is used to transmit/receive 8-bit data se-
rially. This consists of serial I/O data register, serial I/O
mode register, clock selection circuit octal counter and
control circuit as illustrated in Figure 13-1.Pin R50/SIN,
R51/SOUT, R52/SCLK and R53/SRDY pins are con-
trolled by the Serial Mode Register. The contents of the Se-
rial I/O data register can be written into or read out by
software. The data in the Serial Data Register can be shift-
ed synchronously with the transfer clock signal.
Figure 13-1 SCI Block Diagram
SRDY PIN
÷
8
÷
16
÷
32
XIN PIN
P
MUX
SCK[1:0]
00
01
10
11
SCLK PIN
Start
CONTROL CIRCUIT
SIN PIN
Shift
Input shift register
SIOR
Clock
Clock
Octal
Counter
Serial communication
Interrupt
SIOIF
SOUT PIN
SIOST
SIOSF
Complete
R
S
Q
SCK[1:0]
“11”
overflow
not “11”
SRDY In
Complete
SRDY Out
[0EB
H
]
Internal bus line
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