參數(shù)資料
型號(hào): S1C88848D0A0100
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.2 MHz, MICROCONTROLLER, UUC192
封裝: DIE-192
文件頁數(shù): 130/174頁
文件大?。?/td> 1304K
代理商: S1C88848D0A0100
S1C88848 TECHNICAL MANUAL
EPSON
51
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (Serial Interface)
(a) Transmit timing for master mode
(b) Transmit timing for slave mode
(c) Receive timing for master mode
(d) Receive timing for slave mode
Fig. 5.7.6.4 Timing chart (clock synchronous system transmission)
_________
Transmit/receive ready (SRDY) signal
When this serial interface is used in the clock
synchronous slave mode (external clock input), an
_________
SRDY signal is output to indicate whether or not
this serial interface can transmit/receive to the
master side (external serial input/output device).
_________
This signal is output from the SRDY terminal and
when this interface enters the transmit or receive
enable (READY) status, it becomes "0" (LOW level)
and becomes "1" (HIGH level) when there is a
BUSY status, such as during transmit/receive
operation.
_________
The SRDY signal changes the "1" to "0," immedi-
ately after writing "1" into the transmit control bit
TXTRG or the receive control bit RXTRG and
returns from "0" to "1", at the point where the first
synchronous clock has been input (falling edge).
When you have set in the master mode, control the
transfer by inputting the same signal from the slave
side using the input port or I/O port. At this time,
_________
since the SRDY terminal is not set and instead P13
functions as the I/O port, you can apply this port
for said control.
■ Timing chart
The timing chart for the clock synchronous system
transmission is shown in Figure 5.7.6.4.
SCLK
TXTRG (RD)
SOUT
D0 D1 D2 D3 D4 D5 D6 D7
TXEN
Interrupt
TXTRG (WR)
SCLK
TXTRG (RD)
SOUT
D0 D1 D2 D3 D4 D5 D6 D7
TXEN
Interrupt
TXTRG (WR)
SRDY
SCLK
RXTRG (RD)
SIN
D0 D1 D2 D3 D4 D5 D6 D7
RXEN
Interrupt
RXTRG (WR)
TRXD
7F
1st data
SRDY
7F
SCLK
RXTRG (RD)
SIN
D0 D1D2D3D4D5D6D7
RXEN
Interrupt
RXTRG (WR)
TRXD
7F
1st data
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