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零件编号 | W90N745 | ||
描述 | 16/32-bit ARM microcontroller | ||
制造商 | Winbond | ||
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1 Page
W90N745CD/W90N745CDG
32-BIT ARM7TDMI-BASED MCU
W90N745
16/32-bit ARM microcontroller
Product Data Sheet
Free Datasheet http://www.datasheet4u.com/
W90N745CD/W90N745CDG
DMA Controller
• 2-channel general DMA for memory-to-memory data transfers without CPU intervention
• Initialed by a software or external DMA request
• Increments or decrements a source or destination address in 8-bit, 16-bit or 32-bit data transfers
• 4-data burst mode
UART
• Four UART (serial I/O) blocks with interrupt-based operation
• Support for 5-bit, 6-bit, 7-bit or 8-bit serial data transmit and receive
• Programmable baud rates
• 1, ½ or 2 stop bits
• Odd or even parity
• Break generation and detection
• Parity, overrun and framing error detection
• X16 clock mode
• UART1 supports Bluetooth, and UART2 supports IrDA1.0 SIR
Timers
• Two programmable 24-bit timers with 8-bit pre-scaler
• One programmable 20 bit with selectable additional 8-bit prescaler watchdog timer
• One-shot mode, periodical mode or toggle mode operation
Programmable I/Os
• 31 programmable I/O ports
• Pins individually configurable to input, output or I/O mode for dedicated signals
• I/O ports are configurable for multiple functions
Advanced Interrupt Controller
• 24 interrupt sources, including 4 external interrupt sources
• Programmable normal or fast interrupt mode (IRQ, FIQ)
• Programmable as either edge-triggered or level-sensitive for 4 external interrupt sources
• Programmable as either low-active or high-active for 4 external interrupt sources
• Priority methodology is encoded to allow for interrupt daisy-chaining
• Automatically mask out the lower priority interrupt during interrupt nesting
Publication Release Date: September 22, 2006
- 3 - Revision A2
Free Datasheet http://www.datasheet4u.com/
Table 4.1 W90N745 Pins Assignment, continued
PIN NAME
I2C/USI(SPI/MW)
SCL0 /
SFRM /
TIMER0 /
GPIO [11]
SDA0 /
SSPTXD /
TIMER1 /
GPIO [12]
SCL1 /
SCLK /
GPIO [13] /
KPROW [3]
SDA1 /
SSPRXD /
GPIO [14] /
KPROW [2]
UART0/UART1/UART2/PS2
TXD0 /
GPIO [5]
RXD0 /
GPIO [6]
TXD1 /
GPIO [7]
RXD1 /
GPIO [8]
CTS1 /
TXD2(IrDA) /
PS2_CLK /
GPIO [9]
RTS1 /
RXD2(IrDA) /
PS2_DATA /
GPIO [10]
W90N745CD/W90N745CDG
128-PIN LQFP
( 4 pins )
17
18
19
20
( 6 pins )
10
11
12
13
14
15
Publication Release Date: September 22, 2006
- 11 -
Revision A2
Free Datasheet http://www.datasheet4u.com/
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页数 | 30 页 | ||
下载 | [ W90N745.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
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W90N745 | 16/32-bit ARM microcontroller | Winbond |
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