TMP86xy12MG Toshiba, TMP86xy12MG Datasheet - Page 145

• Manufacturer Part Number: TMP86xy12MG
• Manufacturer: Toshiba

Specifications of TMP86xy12MG

• Package: SSOP30
• Rom Types (m=mask,p=otp,f=flash): M/F
• Rom Size: 16
• Ram Size: 512
• Driver Led: 8
• Driver Lcd: -
• Spi/sio Channels: 1
• Uart/sio Channels: 1
• I2c/sio Channels: -
• High-speed Serial Output: -
• Adc 8-bit Channels: -
• Adc 10-bit Channels: 8
• Da Converter Channels: -
• Timer Counter 18-bit Channel: IGBT
• Timer Counter 16-bit Channel: 1
• Timer Counter 8-bit Channel: 2
• Motor Channels: -
• Watchdog Timer: Y
• Dual Clock: Y
• Clock Gear: -
• Number Of I/o Ports: 24
• Power Supply (v): 4.5 to 5.5

12.3 Serial clock
Table 12-1 Serial Clock Rate
12.3.1.1 Internal clock
12.3.1.2 External clock
SCK
000
001
010
011
100
101
110
111
SCK
pin (Output)
SCK
pin (output)
SO
pin (output)
Written transmit
data
SCK pin goes high when transfer starts.
cannot keep up with the serial clock rate, there is a wait function that automatically stops the serial clock
and holds the next shift operation until the read/write processing is completed.
port should be set to "1". To ensure shifting, a pulse width of at least 4 machine cycles is required. This
pulse is needed for the shift operation to execute certainly. Actually, there is necessary processing time for
interrupting, writing, and reading. The minimum pulse is determined by setting the mode and the pro-
gram. Therfore, maximum transfer frequency will be 488.3K bit/sec (at fc=16MHz).
Any of six frequencies can be selected. The serial clock is output to the outside on the SCK pin. The
When data writing (in the transmit mode) or reading (in the receive mode or the transmit/receive mode)
Note: 1 Kbit = 1024 bit (fc = 16 MHz, fs = 32.768 kHz)
An external clock connected to the
Figure 12-3 Automatic Wait Function (at 4-bit transmit mode)
External
Clock
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
-
13
8
7
6
5
4
DV7CK = 0
t
SCKL
Figure 12-4 External clock pulse width
a
t
a
SCKH
0
122.07 Kbps
244.14 Kbps
488.28 Kbps
976.56 Kbps
61.04 Kbps
Baud Rate
1.91 Kbps
External
a
NORMAL1/2, IDLE1/2 mode
-
1
a
2
SCK
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pin is used as the serial clock. In this case, output latch of this
Automatically
wait function
a
External
3
Clock
fs/2
fc/2
fc/2
fc/2
fc/2
fc/2
-
5
8
7
6
5
4
tcyc = 4/fc (In the NORMAL1/2, IDLE1/2 modes)
t
SCKL
DV7CK = 1
, t
4/fs (In the SLOW1/2, SLEEP1/2 modes)
SCKH
b
b
0
> 4tcyc
122.07 Kbps
244.14 Kbps
488.28 Kbps
976.56 Kbps
b
61.04 Kbps
Baud Rate
1024 bps
1
External
c
-
b
2
b
3
c
External
0
Clock
fs/2
SLEEP1/2 mode
-
-
-
-
-
-
SLOW1/2,
5
TMP86CH12MG
c
1
Baud Rate
1024 bps
External
-
-
-
-
-
-