W90N740CDG Nuvoton Technology Corporation of America, W90N740CDG Datasheet - Page 28

• 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: -

EXT. MEM DATA
EXT. MEM DATA
CPU REG DATA
CPU REG DATA
OPERATION
OPERATION
BIT NUMBER
BIT NUMBER
BIT NUMBER
BIT NUMBER
BIT NUMBER
BIT NUMBER
BIT NUMBER
BIT NUMBER
BIT NUMBER
BIT NUMBER
NWBE [3-0] /
SEQUENCE
SEQUENCE
XD WIDTH
SDQM [3-0]
SDQM [3-0]
XD WIDTH
ACCESS
ACCESS
TIMING
TIMING
SA
SD
ED
XA
XD
SA
SD
ED
XA
XD
Table7.2.10 Word access read operation with Little Endian
Table7.2.9 Word access write operation with Little Endian
WORD
WORD
31
ABCD
31
ABCD
31
ABCD
31
ABCD
31
ABCD
31
ABCD
31
ABCD
31
ABCD
31
ABCD
31
ABCD
AAAA
AAAA
WA
WA
WA
WA
0
0
0
0
0
0
0
0
0
0
WRITE OPERATION (CPU REGISTER
READ OPERATION (CPU REGISTER
1st write
1st read
31
XX CD
XXAA
XXAA
15 0
15 0
15 0
15 0
15 0
WA
WA
CD
CD
CD
CD
CD
HALF WORD
HALF WORD
0
31
AB CD
31
AB CD
31
ABCD
31
ABCD
WA
WA
0
0
0
2nd write
0
2nd read
31
AB CD
WA+2
WA+2
XXAA
XXAA
15 0
15 0
15 0
15 0
15 0
AB
AB
AB
AB
AB
0
- 25 -
W90N740CD/W90N740CDG
X X X D
1st write
31
1st read
XXXA
XXXA
7 0
7 0
7 0
7 0
7 0
WA
WA
D
D
D
D
D
0
Publication Release Date: Aug. 18, 2005
2nd write
X X C D
2nd read
31
EXTERNAL MEMORY)
EXTERNAL MEMORY)
WA+1
WA+1
XXXA
XXXA
7 0
7 0
7 0
7 0
7 0
C
C
C
C
C
A B C D
A B C D
31
31
0
BYTE
BYTE
31
ABCD
31
ABCD
WA
WA
0
0
X B C D
3rd write
31
3rd read
0
0
WA+2
XXXA
WA+2
XXXA
7 0
7 0
7 0
7 0
7 0
B
B
B
B
B
0
Revision A6
A B C D
4th write
31
4th read
WA+3
WA+3
XXXA
XXXA
7 0
7 0
7 0
7 0
7 0
A
A
A
A
A
0