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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)： | 14/161頁 |
| 文件大小： | 2043K |
| 代理商： | M30218MC-XXXXFP |
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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
110
Serial I/O2
Figure GA-9. SBUSY2 Output Operation (1)
Figure GA-10. SBUSY2 Output Operation (2)
Internal clock
"1"
"0"
"H"
"L"
D0
Tc
TC : Internal synchronous clock is selected by bits 5 to 7 of address 034816
D1
D2
D3
D4 D5
D6
D7
Serial operation used SBUSY2 output
Operation mode
: 8-bit serial I/O mode
Transfer clock
: Internal synchronous clock
SBUSY2 output timing
: Each 1-byte data
Serial transfer status flag
(bit 5 at address 034416)
SOUT2
SCLK2i
(i = 1, 2)(output)
SBUSY2(output)
"1"
"0"
"H"
"L"
D0
SOUT2
D1
D2 D3
D4
D5
D6
D7
Write to serial I/O register
(Address 034616)
Serial operation used SBUSY2 output
Operation mode
: 8-bit serial I/O mode
Transfer clock
: External synchronous clock
SBUSY2 output timing
: Each 1-byte data
Serial transfer status flag
(bit 5 at address 034416)
SCLK2i
(i = 1, 2)(Input)
SBUSY2(output)
(3) SBUSY2 output signal
The SBUSY2 output is a signal which requests to stop of transmission/reception to the serial transfer
destination. In the automatic transfer serial I/O mode, regardless of the internal or external synchro-
nous clock, whether the SBUSY2 output is to be output at transfer of each 1-byte data or during transfer
of all data can be selected by the SBUSY2 output SSTB2 output function select bit (bit 4 of address
034416). In the initial status[ serial I/O initialization bit (bit 4 of address 034216) = “0” ], the status in
____________
which the SBUSY2 outputs “H” (or the SBUSY2 outputs “L”).
When the internal synchronous clock is selected, in the 8-bit serial I/O mode and the automatic trans-
fer serial I/O mode (SBUSY2 output function: each 1-byte signal is selected), the SBUSY2 output goes to
____________
“L” (or the SBUSY2 output goes to “H”) before 0.5 cycle of the timing at which the transfer clock goes to
“L” . In the automatic transfer serial I/O mode (the SBUSY2 output function: all transfer data is selected),
____________
the SBUSY2 output goes to “L” (or the SBUSY2 output goes to “H”) when the first transmit data is written
into the serial I/O2 register (address 034616).
____________
When the external synchronous clock is selected, the SBUSY2 output goes to “L” (or the SBUSY2 output
goes to “H”) when transmit data is written into the serial I/O2 register(address 034616), regardless of
the serial I/O transfer mode.
At termination of transmit/receive operation, in the 8-bit serial I/O mode, the SBUSY2 output goes to “H”
____________
(or the SBUSY2 output returns to “L”), when the serial transfer status flag is set to “0”, regardless of
whether the internal or external synchronous clock is selected. Furthermore, in the automatic transfer
serial I/O mode (SBUSY2 output function: each 1-byte signal is selected), the SBUSY2 output goes to “H”
____________
(or the SBUSY2 output goes to “L”) each time 1-byte of receive data is written into the automatic trans-
fer RAM.
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