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参数资料
| 型号： | ML60851CGA |
| 厂商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分类： | 总线控制器 |
| 英文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PQFP44 |
| 封装： | 9 X 10 MM, 0.80 MM PITCH, PLASTIC, QFP-44 |
| 文件页数： | 58/67页 |
| 文件大小： | 389K |
| 代理商： | ML60851CGA |
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ML60851C
Semiconductor
61/67
PEDL60851C-02
Application Interface
Note: 1. Initial value immediately after resetting. Its assertion can be changed by programming.
Description
Assertion
—
Type
I/O
Signal
D15:D8
Upper byte (MSB) of data bus. This data bus is used by applications to access
register files and FIFO data.
—
I/O
AD7:AD0
Lower byte (LSB) of data bus when ADSEL is LOW.
Address and lower byte of data bus are multiplexed when ADSEL is HIGH.
—
I
A7:A0
Address when ADSEL is LOW. This address signal is used by application to
access register files and FIFO data.
This signal is ignored (all lows or all highs) when ADSEL is HIGH.
LOW
I
CS
Chip Select. When this signal is asserted LOW, the ML60851C is selected
and ready to read or write data.
LOW
I
RD
Read Strobe. When this signal is asserted LOW, the Read instruction is
executed.
LOW
I
WR
Write Strobe. When this signal is asserted LOW, the Write instruction is
executed.
LOW
(Note 1)
O
INTR
Interrupt Request. When this signal is asserted, the ML60851C makes an
interrupt request to the application.
LOW
(Note 1)
O
DREQ
DMA Request. This signal requests the Endpoint FIFO to make a DMA transfer.
HIGH
(Note 1)
I
DACK
DMA Acknowledge Signal. This signal, when asserted, enables accessing
FIFOs, without address bus setting.
I
ALE
When ADSEL is HIGH, the address and CS on AD7:AD0 is latched at the
trailing edge of this signal. This signal is ignored when ADSEL is LOW.
I
ADSEL
When ADSEL is LOW, the address is input on A7:A0 and data is input on
D15:D8 and AD7:AD0. When ADSEL is HIGH, the lower bytes (LSB) of
address and data are multiplexed on AD7:AD0.
I
RESET
System Reset. When this signal is asserted LOW, the ML60851C is reset.
When the ML60851C is powered on, this signal must be asserted for 1 ms or more.
LOW
—
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相关代理商/技术参数 |
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| ML60851CTB | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:USB Device Controller |
| ML60851D | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:USB Device Controller |
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