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(bǔ)編8X196Kx。 8X196Jx。 87C196CA用戶手冊
文件頁數(shù): 41/136頁
文件大?。?/td> 659K
代理商: 8XC196LX
4-7
STANDARD AND PTS INTERRUPTS
PTSSEL
Address:
Reset State:
0004H
0000H
The PTS select (PTSSEL) register selects either a PTS microcode routine or a standard interrupt
service routine for each interrupt request. Setting a bit selects a PTS microcode routine; clearing a bit
selects a standard interrupt service routine. In PTS modes that use the PTSCOUNT register, hardware
clears the corresponding PTSSEL bit when PTSCOUNT reaches zero. The end-of-PTS interrupt service
routine must reset the PTSSEL bit to re-enable the PTS channel.
15
8
LA
EXTINT
RI
TI
SSIO1
SSIO0
7
0
AD
EPA0
EPA1
EPA2
EPA3
EPA
x
15
8
LB
EXTINT
RI
TI
SSIO1
SSIO0
J1850ST
7
0
J1850RX
J1850TX
AD
EPA0
EPA1
EPA2
EPA3
EPA
x
15
8
LD
EXTINT
RI
TI
SSIO1
SSIO0
7
0
EPA0
EPA1
EPA2
EPA3
EPA
x
Bit
Number
Function
14:0
Setting a bit causes the corresponding interrupt to be handled by a PTS microcode routine.
The PTS interrupt vector locations are as follows:
Bit Mnemonic
Interrupt
EXTINT
EXTINT pin
Reserved
RI
SIO Receive
TI
SIO Transmit
SSIO1
SSIO 1 Transfer
SSIO0
SSIO 0 Transfer
J1850ST (LB)
J1850 Status
J1850RX(LB)
J1850 Receive
J1850TX(LB) J1850 Transmit
AD(LA, LB)
A/D Conversion Complete
EPA0
EPA Capture/Compare Channel 0
EPA1
EPA Capture/Compare Channel 1
EPA2
EPA Capture/Compare Channel 2
EPA3
EPA Capture/Compare Channel 3
EPA
x
Multiplexed EPA
PTS service is not useful for shared interrupts because the PTS cannot readily
determine the source of these interrupts.
PTS Vector
205CH
205AH
2058H
2056H
2054H
2052H
2050H
204EH
204CH
204AH
2048H
2046H
2044H
2042H
2040H
Bit 13 is reserved on the 8XC196Lx
devices and bits 6–8 are reserved on the 87C196LA and
83C196LD. For compatibility with future devices, write zeros to these bits.
Figure 4-5. PTS Select (PTSSEL) Register
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