at75c220 ATMEL Corporation, at75c220 Datasheet - Page 66

• Manufacturer Part Number: at75c220
• Description: Smart Internet Appliance Processor Siap
• Manufacturer: ATMEL Corporation

PIO User Interface
PIO Controller A Base Address: 0xFF00C000
PIO Controller B Base Address: 0xFF010000
Table 21. PIO Controller Memory Map
Notes:
66
Offset
0x0C
0x1C
0x2C
0x3C
0x4C
0x00
0x04
0x08
0x10
0x14
0x18
0x20
0x24
0x28
0x30
0x34
0x38
0x40
0x44
0x48
1. The reset value of this register depends on the level of the external pins at reset.
2. This register is cleared at reset. However, the first read of the register can give a value not equal to zero if any changes have
occurred on any pins between the reset and the read.
Register Name
PIO_CODR
PIO_SODR
PIO_ODSR
PIO_PDSR
PIO_OER
PIO_ODR
PIO_OSR
PIO_PER
PIO_PDR
PIO_PSR
PIO_IMR
PIO_IDR
PIO_IER
PIO_ISR
AT75C220
–
–
–
–
–
–
Description
PIO Enable Register
PIO Disable Register
PIO Status Register
Reserved
Output Enable Register
Output Disable Register
Output Status Register
Reserved
Reserved
Reserved
Reserved
Reserved
Set Output Data Register
Clear Output Data Register
Output Data Status Register
Pin Data Status Register
Interrupt Enable Register
Interrupt Disable Register
Interrupt Mask Register
Interrupt Status Register
Read-only
Read-only
Read-only
Read-only
Write-only
Write-only
Read-only
Write-only
Write-only
Read-only
Write-only
Write-only
Write-only
Write-only
Access
–
–
–
–
–
–
Reset Value
See Note 1
See Note 2
0x0
0x0
0x0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–