UPD78F0988AGC-8BS Renesas Electronics America, UPD78F0988AGC-8BS Datasheet - Page 268

• Manufacturer Part Number: UPD78F0988AGC-8BS
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0988AGC-8BS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

266
Symbol
(2) Interrupt mask flag registers (MK0L, MK0H, MK1L)
MK0H
MK0L
MK1L
An interrupt mask flag enables or disables the corresponding maskable interrupt servicing and release of the
standby mode.
MK0L, MK0H, and MK1L are set by a 1-bit or 8-bit memory manipulation instruction. When using MK0L and
MK0H as a 16-bit register, MK0, it is set by a 16-bit memory manipulation instruction.
RESET input sets these registers to FFH.
Cautions 1. If the watchdog timer is used in watchdog timer mode 1, the WDTMK flag will be undefined
ADMK0 CSIMK3
SRMK0 SERMK0
PMK6 PMK5 PMK4
7
7
7
2. Because port 0 and P54 to P57 have alternate functions of external interrupt request
6
6
6
when read.
inputs, the corresponding interrupt request flag is set when the output mode is specified
and output level of a port pin is changed.
To use the port in the output mode, therefore, set the corresponding interrupt mask flag
to 1 in advance.
TMMK
TMMK
011
52
5
5
5
Figure 14-3. Format of Interrupt Mask Flag Register
PMK3 PMK2 PMK1
TMMK
TMMK
001
51
4
4
4
TMMK
TMMK
010
50
CHAPTER 14 INTERRUPT FUNCTIONS
3
3
3
STMK1
TMMK
000
User’s Manual U13029EJ7V1UD
2
2
2
TMMK7
SRMK1
PMK0
1
1
1
WDTMK
STMK0
PMK7
0
0
0
Address
FFE4H
FFE5H
FFE6H
MK
0
1
Enables interrupt servicing
Disables interrupt servicing
After reset
FFH
FFH
FFH
Interrupt servicing control
R/W
R/W
R/W
R/W