参数资料
型号: B900J24FXX12IT
元件分类: 数字信号处理
英文描述: 0-BIT, 59.88 MHz, OTHER DSP, PQFP44
文件页数: 6/100页
文件大小: 1547K
代理商: B900J24FXX12IT
Advance Data Sheet
B900
July 1999
Baseband Signal Processor
Lucent Technologies Inc.
13
3 Pin Information (continued)
Table 5. I/O Port Interface (IOP)
Pin
Description
IOPA[7:0]
I/O Port A. Bidirectional. These pins may be individually configured to be inputs or outputs. As
outputs, each bit may be set, cleared, or toggled under program control. As inputs, they may be
read. Note that IOPA is not available in the 28-pin SOJ package.
IOPB[7:0]
I/O Port B. Bidirectional. These pins may be individually configured to be inputs or outputs. As
outputs, each bit may be set, cleared, or toggled under program control. As inputs, they may be
read. Note that IOPB pins are multiplexed as follows:
s
IOPB0/INTB
s
IOPB1/OSCBYP
s
IOPB2/SLDB
s
IOPB3/JTSEL
s
IOPB4/SLDA
s
IOPB5/SCLK
s
IOPB6/SDO
s
IOPB7/SDI
IOPC[7:0]
I/O Port C. Bidirectional. These pins may be individually configured to be inputs or outputs. As
outputs, each bit may be set, cleared, or toggled under program control. As inputs, they may be
read. Note that IOPC pins are multiplexed with other pins as follows:
s
IOPC0/TMS
s
IOPC1/TCK
s
IOPC2/TDI
s
IOPC3/TDO
s
IOPC4/SSN
s
IOPC5/SCK
s
IOPC6/MDOSDI
s
IOPC7/MDISDO
IOPD[3:0]
I/O Port D. Bidirectional. These pins may be individually configured to be inputs or outputs. As
outputs, each bit may be set, cleared, or toggled under program control. As inputs, they may be
read.
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