參數(shù)資料
型號： M30218MC-XXXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁數(shù)： 11/161頁
文件大?。?/td> 2043K
代理商： M30218MC-XXXXFP
Under
development
Tentative Specifications REV.A
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
108
Serial I/O2
Handshake Signal
There are five types of handshake signal : SSTB2 output, SBUSY2 input/output, and SRDY2 input/output.
(1) SSTB2 output signal
The SSTB2 output is a signal to inform an end of transmission/reception to the serial transfer destina-
tion. The SSTB2 output signal can be used only when the internal synchronous clock is selected. In the
initial status [ serial I/O initialization bit (bit 4 of address 034216) = “0” ], the SSTB2 output goes to “L”
__________
(bits 2, 3 of address 034216=11), or the SSTB2 output goes to “H” (bits 2, 3 of address 034216=10).
At the end of transmit/receive operation, after the all data of the serial I/O2 register (address 034616) is
_________
output from SOUT2, SSTB2 output is “H” (or SSTB2 output is “L”) in the period of 1 cycle of the transfer clock.
Furthermore, after 1 cycle, the serial transfer status flag (bit 5 of address 034416) is reset to “0”.
In the automatic transfer serial I/O mode, whether the SSTB2 output is to be output at an end of each 1-byte
data or after completion of transfer of all data can be selected by the SBUSY2 output SSTB2 output function
select bit (bit 4 of address 034416).
Figure GA-6. SSTB2 Output Operation
"1"
"0"
SSTB2(output)
"H"
"L"
D0
Tc
D1
D2
D3
D4
D5
D6
D7
"1"
"0"
"H"
"L"
D0
Tc
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
Automatic
transfer interval
Serial operation used SSTB2 output
Operation mode
: 8-bit serial I/O mode
Transfer clock
: Internal synchronous clock
SSTB2 output timing
: Each 1-byte data
Internal clock
Serial transfer status flag
(bit 5 at address 034416)
SCLK2i
(i=1, 2)(output)
SOUT2
Tc : Internal synchronous clock is selected by bits 5 to 7 of address 034816
Serial operation used SSTB2 output
Operation mode
: Automatic transfer serial I/O mode
Transfer clock
: Internal synchronous clock
SSTB2 output timing
: Each transfer of all data
Internal clock
Serial transfer status flag
(bit 5 at address 034416)
SCLK2i
(i=1, 2)(output)
SSTB2(output)
SOUT2
Tc : Internal synchronous clock is selected by bits 5 to 7 of address 034816
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