tmp88fw45afg TOSHIBA Semiconductor CORPORATION, tmp88fw45afg Datasheet - Page 214

• Manufacturer Part Number: tmp88fw45afg
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

17.2
Control
17.2
SIO Control Register 1
determined by reading SIO status register (SIOSR).
01F98H to 01F9FH for SIO in the DBR area, and can continuously transfer up to 8 words (bytes or nibbles) at one
time. When the specified number of words has been transferred, a buffer empty (in the transmit mode) or a buffer full
(in the receive mode or transmit/receive mode) interrupt (INTSIO) is generated.
fixed interval wait can be applied to the serial clock for each word transferred. Four different wait times can be selected
with SIOCR2<WAIT>.
SIOCR1
(1F96H)
The serial interface is controlled by SIO control registers (SIOCR1/SIOCR2). The serial interface status can be
The transmit and receive data buffer is controlled by the SIOCR2<BUF>. The data buffer is assigned to address
When the internal clock is used as the serial clock in the 8-bit receive mode and the 8-bit transmit/receive mode, a
Note 1: fc; High-frequency clock [Hz]
Note 2: Set SIOCR1<SIOS> to "0" and SIOCR1<SIOINH> to "1" when setting the transfer mode or serial clock.
Note 3: SIOCR1 is write-only register, which cannot access any of in read-modify-write instruction such as bit operate, etc.
Control
SIOINH
SIOM
SIOS
SCK
SIOS
7
Indicate transfer start / stop
Continue / abort transfer
Transfer mode select
Serial clock select
SIOINH
6
5
SIOM
4
0:
1:
0:
1:
000:
010:
100:
101:
110:
000
001
010
011
100
101
110
111
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Stop
Start
Continuously transfer
Abort transfer (Automatically cleared after abort)
8-bit transmit mode
4-bit transmit mode
8-bit transmit / receive mode
8-bit receive mode
4-bit receive mode
3
Except the above: Reserved
2
DV1CK = 0
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
External clock (Input from SCK pin)
SCK
13
8
7
6
5
4
1
NORMAL, IDLE mode
Reserved
0
(Initial value: 0000 0000)
DV1CK = 0
TMP88FW45AFG
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
14
9
8
7
6
5
Write
Write
only
only