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參數(shù)資料
型號(hào): W83697HF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設(shè)及接口
英文描述: WINBOND I/O
中文描述: MULTIFUNCTION PERIPHERAL, PQFP128
封裝: PLASTIC, QFP-128
文件頁數(shù): 83/167頁
文件大小: 1094K
代理商: W83697HF
W83697HF/F
Publication Release Date: Feb. 2002
Revision 0.70
- 74 -
Bit 5-3: Reflect the IRQ resource assigned for ECP port.
cnfgB[5:3]
IRQ resource
000
reflect other IRQ resources selected by PnP register (default)
001
IRQ7
010
IRQ9
011
IRQ10
100
IRQ11
101
IRQ14
110
IRQ15
111
IRQ5
Bit 2-0: These five bits are at high level during a read and can be written
.
6.3.10 ecr (Extended Control Register) Mode = all
This register controls the extended ECP parallel port functions. The bit definitions are follows:
7 6 5 4 3 2 1 0
empty
full
service Intr
dmaEn
nErrIntrEn
MODE
MODE
MODE
Bit 7-5: These bits are read/write and select the mode.
000
Standard Parallel Port mode. The FIFO is reset in this mode.
001
PS/2 Parallel Port mode. This is the same as 000 except that direction may be used
to tri-state the data lines and reading the data register returns the value on the data
lines and not the value in the data register.
010
Parallel Port FIFO mode. This is the same as 000 except that bytes are written or
DMAed to the FIFO. FIFO data are automatically transmitted using the standard
parallel port protocol. This mode is useful only when direction is 0.
011
ECP Parallel Port Mode. When the direction is 0 (forward direction), bytes placed into
the ecpDFifo and bytes written to the ecpAFifo are placed in a single FIFO and auto
transmitted to the peripheral using ECP Protocol. When the direction is 1 (reverse
direction), bytes are moved from the ECP parallel port and packed into bytes in the
ecpDFifo.
100
Selects EPP Mode. In this mode, EPP is activated if the EPP mode is selected.
101
Reserved.
110
Test Mode. The FIFO may be written and read in this mode, but the data will not be
transmitted on the parallel port.
111
Configuration Mode. The confgA and confgB registers are accessible at 0x400 and
0x401 in this mode.
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