UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 196

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

CHAPTER 5 PORT FUNCTIONS
(11) As port 2 is an input-only port, a comparison of the pin status with the output latch contents using the CHKL or CHKLA
instruction will always show a match. Therefore, executing these instructions on port 2 is actually ineffective.
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