UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 412

• Manufacturer Part Number: UPD78F0413GA-GAM-AX
• Description: 8BIT UC, 32K FLASH, 1KB RAM, LCD
• Manufacturer: NEC

Specifications of UPD78F0413GA-GAM-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 30
• Ram Memory Size: 1024Byte
• Cpu Speed: 10MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 32KB
• Oscillator Type: External, Internal

(2) MCG transmit bit count specification register (MC0BIT)
412
Address: FF4BH
MC0BIT
Symbol
This register is used to set the number of transmit bits.
Set the transmit bit count to this register before setting the transmit data to MC0TX.
In continuous transmission, the number of transmit bits to be transmitted next needs to be written after the
occurrence of a transmission start interrupt (INTMCG). However, if the next transmit count is the same number
as the previous transmit count, this register does not need to be written.
This register can be set by an 8-bit memory manipulation instruction.
Reset signal generation sets this register to 07H.
Remark When the number of transmit bits is set as 7 bits or smaller, the lower bits are always
MC0BIT2
Figure 16-3. Format of MCG Transmit Bit Count Specification Register (MC0BIT)
7
0
0
0
0
0
1
1
1
1
After reset: 07H
MC0TX
ex. When the number of transmit bits is set as 3 bits, and D7 to D0 are written to MCG transmit
Start bit: LSB
Start bit: MSB
transmitted regardless of MSB/LSB settings as the transmission start bit.
buffer register (MC0TX)
MC0BIT1
Transmission order
Transmission order
6
0
0
0
1
1
0
0
1
1
D7
7
CHAPTER 16 MANCHESTER CODE GENERATOR
R/W
MC0BIT0
D6
6
5
0
0
1
0
1
0
1
0
1
User’s Manual U18698EJ1V0UD
1 bit
2 bits
3 bits
4 bits
5 bits
6 bits
7 bits
8 bits
D5
D0
D2
5
4
0
→
→
D4
4
D1
D1
3
0
Transmit bit count setting
→
→
D3
3
MC0BIT2
<2>
D2
D0
D2
2
MC0BIT1
Transmit data
<1>
D1
1
MC0BIT0
<0>
D0
0