tmp89cm42 TOSHIBA Semiconductor CORPORATION, tmp89cm42 Datasheet - Page 132
tmp89cm42
Manufacturer Part Number
tmp89cm42
Description
8 Bit Microcontroller Tlcs-870/c1 Series
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TMP89CM42.pdf
(342 pages)
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8.3
I/O Port Registers
RA007
8.3.8
used as the serial interface input/output and the UART input/output.
MOS output can be selected.
needed. For details, refer to "8.4 Serial Interface Selecting Function".
Peripheral
Port PB (PB7 to PB4)
functions
UART0
Port PB is an 4-bit input/output port that can be set to input or output for each bit individually, and it is also
The output circuit has the P-channel output control function and either the sink open drain output or the C-
When this port is used as the serial interface or the UART, setting for serial interface selecting function is also
SIO0
Table 8-18 Port PB
Secondary
function
PBPRD read
Reset signal (Reset 2)
PB7
SYSCR1<OUTEN>
-
SYSCR1<STOP>
Input/output control
Function control
PBOUTCR write
SCLK0, SO0, TXD0
Output control
(for each bit)
(for each bit)
(for each bit)
(for each bit)
Output latch
PBCR write
PBFC write
PBDR write
SCLK0
PB6
SCLK0, SI0, RXD0
Figure 8-10 Port PB
RXD0
TXD0
PB5
SI0
Functions enclosed by
the dotted line are for
PB6 to PB4 only.
0
1
Page 118
S
RXD0
TXD0
SO0
PB4
-
-
-
-
(Note2)
Note1 : R = 100Ω (typ.)
Note2 : Nch large current
Note3 : i = 4 to 7
-
-
-
-
R
TMP89CM42
PBi
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