UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 576

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

(2) Macro service mode register
536
The macro service mode register is an 8-bit register that specifies the macro service operation. This register is written
in internal RAM as part of the macro service control word (see Figure 20-20).
The format of the macro service mode register is shown in Figure 20-21.
VCIE
7
MOD2
MOD2 MOD1 MOD0
VCIE
6
0
0
0
0
1
1
1
1
0
1
MOD1
Generated
Not generated (next interrupt processing is vectored interrupt)
5
0
0
1
1
0
0
1
1
Figure 20-21 Macro Service Mode Register Format (1/2)
MOD0
CHT0
CHT1
CHT2
CHT3
4
0
1
0
1
0
1
0
1
CHT3
Counter mode
Counter
decrement
3
CHAPTER 20 INTERRUPT FUNCTIONS
CHT2
0
0
0
0
2
CHT1
1
Interrupt request when MSC = 0
Data transfer
direction
Memory
Data transfer
direction
SFR
Data transfer
direction
Memory
Data transfer
direction
SFR
CHT0
0
memory
memory
SFR
SFR
Type A
1
0
0
0
Data size:
1 byte
Data size:
2 bytes
Data transfer
direction
Memory
Data transfer
direction
SFR
Data transfer
direction
Memory
Data transfer
direction
SFR
memory
memory
SFR
SFR
Type B
0
0
0
1
Data size:
1 byte
Data size:
2 bytes