W90N740CDG Nuvoton Technology Corporation of America, W90N740CDG Datasheet - Page 87

• Manufacturer Part Number: W90N740CDG
• Description: IC MCU ARM7 TDMI 176-LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W90r

Specifications of W90N740CDG

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 80MHz
• Connectivity: EBI/EMI, Ethernet, UART/USART, USB
• Peripherals: DMA, POR, WDT
• Number Of I /o: 21
• Program Memory Type: ROMless
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 1.62 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 176-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

SPCRC [5]: Accept Strip CRC Value
Default value: 0
Set this bit to enable MAC to check the CRC and then strip it from the message.
AEP [4]: Accept Error Packet
Default value: 0
Set this bit to enable MAC to accept error (CRC error) packet.
ACP [3]: Accept Control Packet
Default value : 0
Set this bit to enable accept control packets.
ARP [2]: Accept Runt Packet
Default value: 0
Set this bit to enable accepting frames with lengths less than 64 bytes.
ALP [1]: Accept Long Packet
Default value: 0
Set this bit to enable accepting frames with lengths greater than 1518 bytes.
RXON [0]: Receive ON
Default value: 0
This bit is set to enable MAC reception operation. If the bit is clear, receptions will stop after the
current packet is received completely. Users should change the bit when the MAC is in idle state.
MAC MII Management Data Register (MIID_0, MIID_1)
W90N740 provides MII management function to let user access the registers of the
external physical layer device. Setting options in MII management registers does not
affect the MAC controller operation.
MIID_0
MIID_1
REGISTER
31
23
15
7
0xFFF0.3090
0xFFF0.3890
ADDRESS
30
22
14
6
29
21
13
5
R/W
R/W
R/W
MII Management Data Register
MII Management Data Register
28
20
12
4
Reserved
Reserved
MIIData
MIIData
- 84 -
W90N740CD/W90N740CDG
DESCRIPTION
27
19
11
3
26
18
10
2
25
17
9
1
RESET VALUE
0x0000.0000
0x0000.0000
24
16
8
0