TMP86FS49AFG Toshiba Semiconductor, TMP86FS49AFG Datasheet - Page 178

• Manufacturer Part Number: TMP86FS49AFG
• Description: 8-Bit Microcontroller
• Manufacturer: Toshiba Semiconductor

14.3 Function
14.3 Function
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14.3.1 Serial clock
Table 14-1 Serial Clock Rate (fc = 16 MHz, fs = 32.768kHz)
SIO1CR<SIOS>
SCK1
SO1 pin
SIO1TDB
14.3.1.1 Clock source
SCK
000
001
010
100
101
011
110
pin output
instruction to SIO1CR<SCK> should be executed while the transfer is stopped (when SIO1SR<SIOF>
“0”)
Figure 14-2 Automatic-wait Function (Example of transmit mode)
(1)
Serial Clock
The serial clock can be selected by using SIO1CR<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 14-2 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 SIO1CR<SCK> to other than “111B” outputs the clock (shown in " Table 14-1 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
SCK1
3.906 kbps
Baud Rate
1.00 Mbps
2.00 Mbps
62.5 kbps
A7
125 kbps
250 kbps
500 kbps
pin.
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 162
A2
TBTCR<DV7CK> = "1"
SCK1
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 SIO1TDB
B
B7 B6 B5 B4 B3
Serial Clock
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
SLOW1/2, SLEEP1/2 Mode
fs/2
4
SCK1
TMP86FS49AFG
pin. At the before
B2 B1 B0
Baud Rate
2048 bps
–
–
–
–
–