参数资料
型号: mPD789322
厂商: NEC Corp.
元件分类: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器与2/4/8K字节在系统可编程闪存
文件页数: 58/96页
文件大小: 482K
代理商: MPD789322
Preliminary Product Information U14673EJ1V0PM00
61
PD789322,789324,789326,789327
(2) Interrupt mask flag register 0 (MK0)
Interrupt mask flags are used to enable and disable the corresponding maskable interrupts.
MK0 is set using a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to FFH.
Figure 6-3. Format of Interrupt Mask Flag Register 0
Symbol
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
Address
After reset
R/W
MK0
WTIMK
KRMK00 TMMK40 TMMK30
WTMK
CSIMK0
PMK0
WDTMK
FFE4H
FFH
R/W
××MK
Interrupt servicing control
0
Interrupt servicing enabled
1
Interrupt servicing disabled
Cautions 1. When the watchdog timer is being used in watchdog timer mode 1 or 2, any attempt to
read the WDTMK flag results in an undefined value being detected.
2. Because P61 functions alternately as an external interrupt, when the output level
changes after the output mode of the port function is specified, the interrupt request flag
will be inadvertently set. Therefore, be sure to preset the interrupt mask flag (PMK0)
before using the port in output mode.
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