tmp86ch47ug TOSHIBA Semiconductor CORPORATION, tmp86ch47ug Datasheet - Page 98

• Manufacturer Part Number: tmp86ch47ug
• Description: 8 Bit Microcontroller Tlcs-870/c Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

9.3 Function
9.3 Function
9.3.1 Serial clock
Table 9-1 Serial Clock Rate (fc = 16 MHz, fs = 32.768kHz)
SIOCR1<SIOS>
SCK
SO pin
SIOTDB
9.3.1.1
SCK
000
001
010
100
101
011
110
pin output
instruction to SIOCR1<SCK> should be executed while the transfer is stopped (when SIOSR<SIOF>
“0”)
Figure 9-2 Automatic-wait Function (Example of transmit mode)
Clock source
(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 9-2 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 9-1 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
A2
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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
pin. At the before
TMP86C845UG
B2 B1 B0
Baud Rate
2048 bps
–
–
–
–
–