tmp86c847iug TOSHIBA Semiconductor CORPORATION, tmp86c847iug Datasheet - Page 112

• Manufacturer Part Number: tmp86c847iug
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

10.3 Function
10. Synchronous Serial Interface (SIO)
10.3 Function
10.3.1 Serial clock
Table 10-1 Serial Clock Rate (fc = 16 MHz, fs = 32.768kHz)
SIOCR1<SIOS>
SCK
SO pin
SIOTDB
10.3.1.1 Clock source
SCK
000
001
010
011
100
101
110
pin output
instruction to SIOCR1<SCK> should be executed while the transfer is stopped (when SIOSR<SIOF>
“0”)
Figure 10-2 Automatic-wait Function (Example of transmit mode)
(1)
Serial Clock
The serial clock can be selected by using SIOCR1<SCK>. When the serial clock is changed, the writing
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
Clock Rate (fc = 16 MHz, fs = 32.768kHz) ") as serial clock outputs from
beginning or finishing of a transfer,
clock rate, an automatic-wait function is executed to stop the serial clock automatically and hold the
next shift operation until reading or writing is completed (shown in " Figure 10-2 Automatic-wait
Function (Example of transmit mode) "). The maximum time from releasing the automatic-wait
function by reading or writing a data is 1 cycle of the selected serial clock until the serial clock comes
out from
TBTCR<DV7CK> = "0"
Internal clock
Setting the SIOCR1<SCK> to other than “111B” outputs the clock (shown in " Table 10-1 Serial
When writing (in the transmit mode) or reading (in the receive mode) data can not follow the serial
12
8
7
6
5
4
3
A
SCK
pin.
3.906 kbps
Baud Rate
1.00 Mbps
2.00 Mbps
62.5 kbps
A7
125 kbps
250 kbps
500 kbps
NORMAL1/2, IDLE1/2 Mode
A6
A5
A4
A3
Serial Clock
fs/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
Page 104
A2
TBTCR<DV7CK> = "1"
SCK
4
8
7
6
5
4
3
A1
pin is kept in high level.
A0
Automatically wait
Baud Rate
1.00 Mbps
2.00 Mbps
62.5 kbps
2048 bps
125 kbps
250 kbps
500 kbps
Automatic wait is released by writing SIOTDB
B
B7 B6 B5 B4 B3
Serial Clock
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
SLOW1/2, SLEEP1/2 Mode
fs/2
4
SCK
TMP86C847IUG
pin. At the before
B2 B1 B0
Baud Rate
2048 bps
–
–
–
–
–