參數(shù)資料
型號: P80C592
廠商: NXP Semiconductors N.V.
英文描述: 8-bit microcontroller with on-chip CAN
中文描述: 8位微控制器芯片的CAN
文件頁數(shù): 48/108頁
文件大小: 650K
代理商: P80C592
1996 Jun 27
48
Philips Semiconductors
Product specification
8-bit microcontroller with on-chip CAN
P8xC592
13.5.15.1 Special Function Register CANADR
CANADR is implemented as a read/write register.
Table 59
SFR CANADR (address DBH)
Table 60
Description of the CANADR bits
13.5.15.2 Special Function Register CANDAT
CANDAT is implemented as a read/write register.
Table 61
SFR CANDAT (address DAH)
Table 62
Description of the CANADR bits
7
6
5
4
3
2
1
0
DMA
AutoInc
CANA4
CANA3
CANA2
CANA1
CANA0
BIT SYMBOL
FUNCTION
7
6
5
4
3
2
1
0
DMA
AutoInc
CANA4
CANA3
CANA2
CANA1
CANA0
DMA-logic controlled via bit CANADR.7 (see Section 13.5.17).
Reserved.
Auto Address Increment mode controlled via bit CANADR.5 (see Section 13.5.16).
The five least significant bits CANADR.4 to CANADR.0 define the address of one of the
CAN-controller internal registers to be accessed via CANDAT. For instance, after an external
hardware (e.g. power-on) reset CANADR contains the value 64H, and hence the CPU accesses
(read/write) the Acceptance Code register of the CAN-controller, via the SFR CANDAT.
7
6
5
4
3
2
1
0
CAND7
CAND6
CAND5
CAND4
CAND3
CAND2
CAND1
CAND0
BIT SYMBOL
FUNCTION
7
to
0
CAND7
to
CAND0
The SFR CANDAT appears as a port to the CAN-controller internal register (memory location) being
selected by CANADR. Reading or writing CANDAT is effectively an access to that CAN-controller
internal register, which is selected by CANADR.
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