UPD78F0500AMC-CAB-AX Renesas Electronics America, UPD78F0500AMC-CAB-AX Datasheet - Page 470

• Manufacturer Part Number: UPD78F0500AMC-CAB-AX
• Description: MCU 8BIT 30SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2r

Specifications of UPD78F0500AMC-CAB-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2
15.4.2 Asynchronous serial interface (UART) mode
baud rates.
(1) Registers used
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
POWER6
In this mode, data of 1 byte is transmitted/received following a start bit, and a full-duplex operation can be performed.
A dedicated UART baud rate generator is incorporated, so that communication can be executed at a wide range of
Note Can be set as port function.
Remark ×:
0
1
• Asynchronous serial interface operation mode register 6 (ASIM6)
• Asynchronous serial interface reception error status register 6 (ASIS6)
• Asynchronous serial interface transmission status register 6 (ASIF6)
• Clock selection register 6 (CKSR6)
• Baud rate generator control register 6 (BRGC6)
• Asynchronous serial interface control register 6 (ASICL6)
• Input switch control register (ISC)
• Port mode register 1 (PM1)
• Port register 1 (P1)
The basic procedure of setting an operation in the UART mode is as follows.
<1> Set the CKSR6 register (see Figure 15-8).
<2> Set the BRGC6 register (see Figure 15-9).
<3> Set bits 0 to 4 (ISRM6, SL6, CL6, PS60, PS61) of the ASIM6 register (see Figure 15-5).
<4> Set bits 0 and 1 (TXDLV6, DIR6) of the ASICL6 register (see Figure 15-10).
<5> Set bit 7 (POWER6) of the ASIM6 register to 1.
<6> Set bit 6 (TXE6) of the ASIM6 register to 1. → Transmission is enabled.
<7> Write data to transmit buffer register 6 (TXB6). → Data transmission is started.
Caution Take relationship with the other party of communication when setting the port mode register and
The relationship between the register settings and pins is shown below.
Set bit 5 (RXE6) of the ASIM6 register to 1. → Reception is enabled.
TXE6
POWER6: Bit 7 of asynchronous serial interface operation mode register 6 (ASIM6)
TXE6:
RXE6:
PM1×:
P1×:
0
0
1
1
port register.
RXE6
0
1
0
1
don’t care
Bit 6 of ASIM6
Bit 5 of ASIM6
Port mode register
Port output latch
Table 15-2. Relationship Between Register Settings and Pins
PM13
×
×
Note
Note
0
0
P13
×
×
Note
Note
1
1
PM14
×
×
Note
1
Note
1
P14
×
×
Note
×
Note
×
Transmission/
Transmission
CHAPTER 15 SERIAL INTERFACE UART6
Reception
Operation
reception
UART6
Stop
T
X
D6/P13
T
T
P13
P13
X
X
D6
D6
Pin Function
R
X
R
R
D6/P14
P14
P14
X
X
D6
D6
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