UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 612

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

24.7.3 Selecting communication mode
dedicated flash memory programming mode is entered. These FLMD0 pulses are generated by the flash memory
programmer.
Notes 1. Selection items for Standard settings on GUI of the flash memory programmer.
Caution When UART60 is selected, the receive clock is calculated based on the reset command sent from
Remark f
612
UART
(UART60)
3-wire serial I/O
(CSI10)
Communication
In the 78K0/FE2, a communication mode is selected by inputting pulses (up to 8 pulses) to the FLMD0 pin after the
The following table shows the relationship between the number of pulses and communication modes.
Mode
2. Because factors other than the baud rate error, such as the signal waveform slew, also affect UART
3. The possible setting range differs depending on the voltage. For details, refer to the chapter of electrical
the dedicated flash memory programmer after the FLMD0 pulse has been received.
f
f
X
EXCLK
RH
communication, thoroughly evaluate the slew as well as the baud rate error.
specifications.
:
:
: External main system clock
X1 clock
Internal high-speed oscillation clock
UART-Ext-Osc
UART-Ext-FP4CK
CSI-Internal-Osc
Port
115200 bps
2.4 kHz to
2.5 MHz
Table 24-7. Communication Modes
Standard Setting
Speed
CHAPTER 24 FLASH MEMORY
User’s Manual U17554EJ4V0UD
Note 2
2 to 20 MHz
Note 1
Frequency
−
Note 3
1.0
Multiply
Rate
TxD60,
RxD60
SO10, SI10,
SCK10
Pins Used
Peripheral
f
f
f
X
EXCLK
RH
Clock
Number of
FLMD0
Pulses
0
3
8