atam893-d ATMEL Corporation, atam893-d Datasheet - Page 28
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atam893-d
Manufacturer Part Number
atam893-d
Description
Atam893-d Flash Version For Atar080, Atar090/890 And Atar092/892
Manufacturer
ATMEL Corporation
Datasheet
1.ATAM893-D.pdf
(98 pages)
- Current page: 28 of 98
- Download datasheet (2Mb)
Figure 5-5.
5.2.3.1
5.2.3.2
28
BP52
BP53
ATAM893-D
Port 5 Data Register (P5DAT)
Port 5 Control Register (P5CR) Byte Write
Port 5 External Interrupts
Bidir. Port
Bidir. Port
IN_Enable
IN_Enable
Data in
Data in
P5xM2, P5xM1 – Port 5x Interrupt Mode/Direction Code
P5CR:
P5DAT
P5CR
I/O-bus
P53M2 P53M1 P52M2 P52M1 P51M2 P51M1 P50M2 P50M1
Decoder
Bit 3
P5DAT3
First write
cycle
Second
write cycle
Decoder
INT1
Bit 2
P5DAT2
Bit 3
P51M2
Bit 7
P53M2
Decoder
INT6
Bit 2
P51M1
Bit 6
P53M1
Bit 1
P5DAT1
Bit 1
P50M2
Bit 5
P52M2
Decoder
Primary register address: '5'hex
Bit 0
P5DAT0
I/O-bus
Auxiliary register address: '5'hex
Bit 0
P50M1
Bit 4
P52M1
Reset value: 1111b
Data in
Data in
Reset value: 1111b
Reset value: 1111b
IN_Enable
IN_Enable
Bidir. Port
Bidir. Port
4680C–4BMCU–01/05
BP51
BP50
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