MC-78F0712-KIT Renesas Electronics America, MC-78F0712-KIT Datasheet - Page 235

• Manufacturer Part Number: MC-78F0712-KIT
• Description: KIT REF SYSTEM 78K0 UPD78F0712
• Manufacturer: Renesas Electronics America

Specifications of MC-78F0712-KIT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(4) Port mode register 1 (PM1)
Cautions 1. When the internal low-speed oscillation clock is selected as the source clock to the CPU, the
Remarks 1. f
This register sets port 1 input/output in 1-bit units.
When using the P14/TxD00 pin for serial interface data output, clear PM14 to 0 and set the output latch of P14 to
1.
When using the P13/RxD00 pin for serial interface data input, set PM13 to 1. The output latch of P13 at this time
may be 0 or 1.
PM1 can be set by a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to FFH.
Address: FF21H
Symbol
PM1
2. Make sure that bit 6 (TXE00) and bit 5 (RXE00) of the ASIM00 register = 0 when rewriting the
3. The baud rate value is the output clock of the 5-bit counter divided by 2.
2. f
3. k:
4.
5. TMC506: Bit 6 of 8-bit timer mode control register 50 (TMC50)
clock of the internal low-speed oscillator is divided and supplied as the count clock. If the
base clock is the internal low-speed oscillation clock, the operation of serial interface UART00
MDL004 to MDL000 bits.
is not guaranteed.
PM17
PM1n
TMC501: Bit 1 of TMC50
XCLK0
X
:
:
7
0
1
After reset: FFH
:
Output mode (output buffer on)
Input mode (output buffer off)
PM16
Frequency of base clock selected by the TPS001 and TPS000 bits
X1 input clock oscillation frequency
Value set by the MDL004 to MDL000 bits (k = 8, 9, 10, ..., 31)
Don’t care
6
Figure 14-5. Format of Port Mode Register 1 (PM1)
CHAPTER 14 SERIAL INTERFACE UART00
PM15
5
R/W
P1n pin I/O mode selection (n = 0 to 7)
User’s Manual U17890EJ2V0UD
PM14
4
PM13
3
PM12
2
PM11
1
PM10
0
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