AT89C5122D-RDRUM Atmel, AT89C5122D-RDRUM Datasheet - Page 60

• Manufacturer Part Number: AT89C5122D-RDRUM
• Description: IC 8051 MCU 32K CRAM USB 64-VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C5122D-RDRUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: SmartCard, SPI, UART/USART, USB
• Peripherals: LED, POR, WDT
• Number Of I /o: 46
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: AT89C5122D-RDRUMTR

60
AT83R5122, AT8xC5122/23
Table 38. Port Mode Register 1 - PMOD1 (84h) for AT8xC5122
Reset Value = 0000 0000b
Table 39. Port Mode Register 1 - PMOD1 (84h) for AT83C5123
Reset Value = xxxx 00xxb
Bit Number
Bit Number
P5HC1
7
7
7 - 6
5 - 4
3 - 2
1 - 0
7 - 4
3 - 2
1 - 0
-
P5HC0
Bit Mnemonic
P5MC1-P5MC0
Bit Mnemonic
P5HC1-P5HC0
P5LC1-P5LC0
P5LC1-P5LC0
6
P4C1-P4C0
6
-
P5MC1
5
5
-
Description
Port 5 High Configuration bits (Applicable from P5.6 to P5.7 only)
00 Quasi bi-directional
01 Push-pull
10 Input with weak pull-down
11 Input with weak pull-up
Port 5 Medium Configuration bits (Applicable from P5.3 to P5.5 only)
00 Quasi bi-directional
01 Push-pull
10 Input with weak pull-down
11 Input with weak pull-up
Port 5 Low Configuration bits (Applicable from P5.0 to P5.2 only)
00 Quasi bi-directional
01 Push-pull
10 Input with medium pull-up
11 Input with weak pull-up
Port 4 Configuration bits (Applicable from P4.3 to P4.5 only)
00 Quasi bi-directional
01 Push-pull
10 Output Low Speed
11 Input with medium pull-up
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Port 5 Low Configuration bits (Applicable from P5.0 to P5.2 only)
00 Quasi bi-directional
01 Push-pull
10 Input with medium pull-up
11 Input with weak pull-up
Reserved
The value read from this bit is indeterminate. Do not set this bit.
P5MC0
4
4
-
P5LC1
P5LC1
3
3
P5LC0
P5LC0
2
2
P4C1
1
1
-
4202F–SCR–07/2008
P4C0
0
0
-