參數(shù)資料
型號： MB90246APFV
元件分類： 微控制器/微處理器
英文描述： 16-BIT, 16 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, LQFP-100
文件頁數(shù)： 37/100頁
文件大?。?/td> 1959K
代理商： MB90246APFV
41
MB90246A Series
7. Simple I/O Serial Interface
The 8/16-bit simple I/O serial interface transfers data synchronously with a clock.
Communications direction: Concurrent processing of transmission (Whether data is to be sent or received
must be judged by the user.)
Transfer mode: Clock synchronization function (Only data are transferred.)
Transfer rate:DC to
φ/2 (φ: Machine clock. Frequencies of up to 8 MHz are available when the machine clock
is rated at 16 MHz.)
Shift clock: A machine clock division clock is used as the shift clock. (One of four division ratios can be
selected.). A shift clock is output only during data transfer.
Data transfer format: MSB first can be selected. 8 or 16 bits can be selected as data length. Only data are
transferred.
Interrupt request: An interrupt request is issued upon termination of transfer.
Inter-CPU connection: Only 1:1 (bidirectional communication)
(1) Register Configuration
SSR1 : 000021H
SSR2 : 000025H
bit 15
bit 8
Serial control status register 1, 2 (SCR)
OCKE
STOP
(SSR)
bit 7
bit 6
bit 5
bit 4
Initial value
10000000 B
SIE
SOE
WBS
SIR
SMD0
SMD1
.............
bit 3
bit 2
bit 1
bit 0
Serial data register 1, 2 (SDR)
bit 15
Initial value
bit 14bit 13bit 12bit 11bit 10 bit 9 bit 8 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
D15
D14
D13
D12 D11
D10
D09
D08
D07
D06
D05
D04 D03
D02
D01
D00
R/W
Address
------- 1 B
Address
SCR0 : 000020H
SCR1 : 000024H
SDR1H : 000023H
SDR2H : 000027H
SDR1L : 000022H
SDR2L : 000026H
R/W : Readable and writable
R : Read only
— : Unused
X : Indeterminate
Initial value
XXXXXXXXB
(SCR)
bit 15
bit 14
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
——
—
BUSY
Address
bit 7
bit 0
.............
——
—
R
Serial status register 1, 2 (SSR)
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