MS51
Dec. 17, 2019
Page
152
of 316
Rev 1.01
M
S51
SE
RIES
TE
CHNICA
L REF
ERE
N
CE MA
NU
A
L
EIPH1
– Extensive Interrupt Priority High 1
Regiser
Address
Reset Value
EIPH1
FFH, page 0
0000_0000b
7
6
5
4
3
2
1
0
-
-
-
-
-
PWKTH
PT3H
PSH_1
-
-
-
-
-
R/W
R/W
R/W
Bit
Name
Description
2
PWKTH
WKT interrupt priority high bit
1
PT3H
Timer 3 interrupt priority high bit
0
PSH_1
Serial port 1 interrupt priority high bit
Note:
EIPH1 is used in combination with the EIP1 to determine the priority of each interrupt source. See Table 6.2-2 Interrupt
Priority Level Setting for correct interrupt priority configuration.