upd78f0730 Renesas Electronics Corporation., upd78f0730 Datasheet - Page 398

• Manufacturer Part Number: upd78f0730
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

(2) Interrupt mask flag registers (MK0L, MK0H, MK1L, MK1H)
398
Caution Be sure to set bits 1, 2, 4 to 7 of MK1L and bits 0 to 7 of MK1H to 1.
The interrupt mask flags are used to enable/disable the corresponding maskable interrupt servicing.
MK0L, MK0H, MK1L, and MK1H are set by a 1-bit or 8-bit memory manipulation instruction. When MK0L and
MK0H, and MK1L and MK1H are combined to form 16-bit registers MK0 and MK1, they are set by a 16-bit
memory manipulation instruction.
Reset signal generation sets these registers to FFH.
Address: FFE4H
Symbol
MK0L
Address: FFE5H
Symbol
MK0H
Address: FFE6H
Symbol
MK1L
Address: FFE7H
Symbol
MK1H
Figure 13-3. Format of Interrupt Mask Flag Registers (MK0L, MK0H, MK1L, MK1H)
TMMK010
SREMK6
XXMKX
<7>
<7>
7
1
7
1
0
1
After reset: FFH
After reset: FFH
After reset: FFH
After reset: FFH
Interrupt servicing enabled
Interrupt servicing disabled
TMMK000
USBMK1
<6>
<6>
6
1
6
1
CHAPTER 13 INTERRUPT FUNCTIONS
R/W
R/W
R/W
R/W
Preliminary User’s Manual U19014EJ1V0UD
USBMK0
TMMK50
<5>
<5>
5
1
5
1
USBMK2
PMK3
<4>
<4>
4
1
4
1
Interrupt servicing control
TMMKH1
TMMK51
PMK2
<3>
<3>
<3>
3
1
CSIMK0
PMK1
<2>
<2>
2
1
2
1
STMK6
PMK0
<1>
<1>
1
1
1
1
RSUMMK
SRMK6
LVIMK
<0>
<0>
<0>
0
1