UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 141
UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
(759 pages)
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5.3.3
a dual function as serial interface pins.
(1) When set as an output port
Port 1 is an input/output port. Pins P10 and P11 have a dual function as PWM signal output pins, and pins P12 to P14 have
The output latch is enabled, and data transfers between the output latch and accumulator are performed by means of
transfer instructions. The output latch contents can be freely set by means of logical operation instructions. Once data has
been written to the output latch, it is retained until data is next written to the output latch*.
* Including the case where another bit of the same port is manipulated by a bit manipulation instruction.
Operating Status
Internal
Bus
RD
Figure 5-16 Port Specified as Output Port
OUT
WR
CHAPTER 5 PORT FUNCTIONS
PORT
Output
Latch
P1n
n = 0-7
101
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