W7100A WIZnet, W7100A Datasheet - Page 48

• Manufacturer Part Number: W7100A
• Description: 8-bit Microcontrollers - MCU 8051 CORE+HARDWIRED TCP/IP+MAC+PHY
• Manufacturer: WIZnet

Specifications of W7100A

• Rohs: yes
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 255 B
• Data Ram Size: 64 KB
• On-chip Adc: No
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 80 C
• Package / Case: LQFP-100
• Mounting Style: SMD/SMT
• Interface Type: UART
• Program Memory Type: Flash

© Copyright 2011 WIZnet Co., Inc. All rights reserved.
used as GPIO (General Purpose Input Output). The GPIO of W7100A is shown in the Figure
below. The output driving voltage of GPIO is 0V or 3.3V according to the Px_PD/PU SFR value.
All other instructions read from a port exclusively through the port pins. All ports pin can be
P0_PD(0xE3): GPIO0 Pull-down register, the value ‘1’ pull-down the related pin.
P1_PD(0xE4): GPIO1 Pull-down register, the value ‘1’ pull-down the related pin.
P2_PD(0xE5): GPIO2 Pull-down register, the value ‘1’ pull-down the related pin.
Port0[7]
Port1[7]
Port2[7]
7
7
7
Port0[6]
Port1[6]
Port2[6]
6
6
6
Instruction
ANL
ORL
XRL
JBC
CPL
INC, DEC
DJNZ
MOV Px.y, C
CLR Px.y
SETB Px.y
Port0[5]
Port1[5]
Port2[5]
Table 4.2 Read-Modify-Write Instructions
5
5
5
Figure 4.5 Port0 Pull-down register
Figure 4.6 Port1 Pull-down register
Figure 4.7 Port2 Pull-down register
Port0[4]
Port1[4]
Port2[4]
4
4
4
P0_PD (0xE3)
P1_PD (0xE4)
P2_PD (0xE5)
Function Description
Logic AND
Logic OR
Logic exclusive OR
Jump if bit is set and cleared
Complement bit
Increment, decrement byte
Decrement and jump if not zero
Move carry bit to bit y of port x
Clear bit y of port x
Set bit y of port x
Port0[3]
Port1[3]
Port2[3]
3
3
3
Port0[2]
Port1[2]
Port2[2]
2
2
2
Port0[1]
Port1[1]
Port2[1]
1
1
1
Port0[0]
Port1[0]
Port2[0]
Ver. 1.12
0
0
0
Reset
Reset
Reset
0x00
0x00
0x00
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