W90N740CDG Nuvoton Technology Corporation of America, W90N740CDG Datasheet - Page 34

• 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: -

PACKAGE [31:30] Package Type
CHPID [23:0]: Chip identifier
The Chip identifier of W90N740 is 0x90.0740
Arbitration Control Register (ARBCON)
IPACT [2] ： Interrupt priority active
When IPEN=”1”, this bit is set when the ARM core has an unmasked interrupt request.
This bit is available only when the PRTMOD = 0.
IPEN [1] ： Interrupt priority enable bit
0 = the ARM core has the lowest priority.
1 = enable to raise the ARM core priority to second
This bit is available only when the PRTMOD = 0.
PRTMOD [0] ： Priority mode select
0 = Fixed Priority Mode (default)
1 = Rotate Priority Mode
REGISTER
ARBCON
31
23
15
7
0xFFF0.0004
1
ADDRESS
30
22
14
6
PACKAGE [31:30]
RESERVED
29
21
13
5
R/W
R/W
28
20
12
1
4
Arbitration Control Register
RESERVED
RESERVED
RESERVED
- 31 -
W90N740CD/W90N740CDG
27
19
11
3
DESCRIPTION
Publication Release Date: Aug. 18, 2005
IPACT
26
18
10
2
176-pin Package
BUS WIDTH
IPEN
25
17
9
1
RESET VALUE
0x0000.0000
PRTMOD
Revision A6
24
16
8
0