UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 580

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

(2) Macro service channel configuration
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The channel pointer and 8-bit macro service counter (MSC) indicate the buffer address in internal RAM (FE00H to
FEFFH when the LOCATION 0 instruction is executed, or FFE00H to FFEFFH when the LOCATION 0FH instruction
is executed) which is the transfer source or transfer destination (see Figure 20-23). In the channel pointer, the low-
order 8 bits of the address are written to the macro service counter in the macro service channel.
The SFR involved with the access is specified by the SFR pointer (SFRP). The low-order 8 bits of the SFR address
are written to the SFRP.
CHAPTER 20 INTERRUPT FUNCTIONS