UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 589

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

Decrement MPD (–1)
Decrement MPT
Figure 20-29 Macro Service Data Transfer Processing Flow (Type C) (1/2)
CHAPTER 20 INTERRUPT FUNCTIONS
No
No
Read channel pointer contents (m)
Read memory addressed by MPD
Read memory addressed by MPT
Transfer data to compare register
Read contents of macro service
mode register
Transfer data to buffer register
Automatic addition specified?
Determine channel type
Macro service request
Increment MPD (+1)
Increment MPT?
Increment MPD?
acknowledgment
Increment MPT*
Retain MPT?
1
Yes
No
No
Yes
TYPE C
Yes
Yes
Other
To Other Macro Service Processing
Add data to compare register
*
1-byte transfer: +1
2-byte transfer: +2
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