參數(shù)資料
型號: 8XC196LX
英文描述: 8XC196Lx - 8XC196Lx Supplement to 8X196Kx. 8X196Jx. 87C196CA User's Manual
中文描述: 8XC196Lx - 8XC196Lx補編8X196Kx。 8X196Jx。 87C196CA用戶手冊
文件頁數(shù): 40/136頁
文件大?。?/td> 659K
代理商: 8XC196LX
8XC196LXSUPPLEMENT
4-6
4.2.3
Peripheral Transaction Server Registers
Figures 4-5 and 4-6 illustrate the PTS interrupt select and service registers for the 8XC196L
x
mi-
crocontrollers.
INT_PEND1
Address:
Reset State:
0012H
00H
When hardware detects an interrupt request, it sets the corresponding bit in the interrupt pending
(INT_PEND or INT_PEND1) registers. When the vector is taken, the hardware clears the pending bit.
Software can generate an interrupt by setting the corresponding interrupt pending bit.
7
0
LB
NMI
EXTINT
RI
TI
SSIO1
SSIO0
J1850ST
7
0
LA, LD
NMI
EXTINT
RI
TI
SSIO1
SSIO0
Bit
Number
Function
7:0
Any set bit indicates that the corresponding interrupt is pending. The interrupt bit is cleared
when processing transfers to the corresponding interrupt vector.
Bit Mnemonic
Interrupt Description
NMI
Nonmaskable Interrupt
EXTINT
EXTINT Pin
Reserved
RI
SIO Receive
TI
SIO Transmit
SSIO1
SSIO 1 Transfer
SSIO0
SSIO 0 Transfer
J1850ST
J1850 Status (LB only)
Bit 5 is reserved on the 8XC196Lx devices and bit 0 is reserved on the 87C196LA and 83C196LD.
For compatibility with future devices, always write zeros to these bits.
Figure 4-4. Interrupt Pending 1 (INT_PEND1) Register
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