CL-PS7500FE
System-on-a-Chip for Internet Appliance
10.3.10 IRQRQB (0x24) — IRQ B Interrupts Request
76543210
K J PT I SCF
K
J
P
T
I
S
C
F
Write
Read
keyboard receive interrupt
keyboard transmit interrupt
nINT3, active-low
nINT4, active-low
INT5, active-high
nINT6, active-low
INT7, active-high
nINT8, active-low
ignored
request, status bitwise AND’ed with mask
10.3.11 IRQMSKB (0x28) — IRQ B Interrupts Mask
76543210
K J PT I SCF
K
J
P
T
I
S
C
F
Write
Read
Reset
keyboard receive interrupt
keyboard transmit interrupt
nINT3, active-low
nINT4, active-low
INT5, active-high
nINT6, active-low
INT7, active-high
nINT8, active-low
set mask for each interrupt source:
0
do not form part of nIRQ
1
form part of nIRQ
value set by write
set all ‘0’ (none affect nIRQ)
86
MEMORY AND I/O PROGRAMMERS’ MODEL
ADVANCE DATA BOOK v2.0
June 1997