UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 122

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

5.2.7 Port 6
using port mode register 6 (PM6).
122
Port 6 is a 4-bit I/O port with an output latch. Port 6 can be set to the input mode or output mode in 1-bit units
The output of the P60 to P63 pins is N-ch open-drain output (6 V tolerance).
This port can also be used for serial interface data I/O, clock I/O, and external clock input.
Reset signal generation sets port 6 to input mode.
Figures 5-18 to 5-20 show block diagrams of port 6.
Remark When using P62/EXSCL0 as an external clock input pin of the serial interface, input a clock of 6.4 MHz
P6:
PM6:
RD:
WR××: Write signal
to it.
WR
WR
RD
PORT
Port register 6
Port mode register 6
Read signal
PM
PM60, PM61
Output latch
(P60, P61)
Alternate
Alternate
function
function
Figure 5-18. Block Diagram of P60 and P61
PM6
P6
CHAPTER 5 PORT FUNCTIONS
User’s Manual U17260EJ6V0UD
P60/SCL0,
P61/SDA0