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參數資料
型號: W88227QD
廠商: WINBOND ELECTRONICS CORP
元件分類: 消費家電
英文描述: ATAPI CD-ROM Decoder(支持ATAPI標準的CD-ROM解碼器)
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP128
封裝: LQFP-128
文件頁數: 36/116頁
文件大小: 787K
代理商: W88227QD
Preliminary/Confidential
Subject to change without notice
W88227F/W88227QD
- 32 -
1999/10/1 Rev: 0.70
2.2.6 Function Differences Between W88227 and W88113CF
W88227
Internal Linear Address Transfer Counter is added
W88113CF
RAC(1Ch,1Dh,2Dh) can not be accessed during linear
address transfer
TARGET decrement must be performed by uP
TARGET (84h-86h) decrement by setting TARDEC
(16h.w0) high
Host write to Packet FIFO generate Automatic Status
Completion only if ASCEN (18h.w5) is high and
PFFACB (01h.w3) is low
TCC (9Dh) update source is controlled by TCCCTL
(58h.3-0)
Also support 2 nRWE DRAM
CTRL0 can read from 0Ah
CTRL1 can read from 0Bh
TARCTL can read from 10h
INTCTL can read from 11h
SICTL0 cand read from 21h
MEMCF can read from 2Bh
SICTL1 can read from 2Ch
New control bit PFFACB (01h.w3)
New control bit TARDEC (16h.w0)
New control bit TARINC (16h.w1)
New control bit TARINC7 (16h.w2)
New control bit D2EN (1Ah.w3)
New control bit ASCEND (21h.6)
New control bit QSIGEN (21h.5)
New control bit TWES (2Bh.3)
New register RASTA (2Dh,r)
Control bits (2Fh.w3-2) are re-defined
New global control registers (40h-43h)
New register TCCCTL (58h)
New control bit DSPDW (5Bh.2)
New control bit UDTA (8Ah.6)
New control bit APACENB (93h.5)
HRSTS (2Fh.w5-4) are obsolete
ALRT (5Bh.3) is obsolete
ASRIT (5Bh.6) is obsolete
ALE2 (5Ch.3) is obsolete
LSTA (48h-4Bh), LHD (4Ch-4Fh) are obsolete
Host write to Packet FIFO generate Automatic Status
Completion if ASCEN (18h.w5) is high
n/a
Support 2 CAS DRAM only
CTRL0 is write only to 0Ah
CTRL1 is write only to 0Bh
TARCTL is write only to 80h
INTCTL is write only to 01h
SICTL1 is write only to 21h
MEMCF is write only to 2Bh
SICTL1 is write only to 2Ch
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Control bits (2Fh.w3-2) as ARSTS
n/a
n/a
n/a
n/a
n/a
available
available
available
available
available
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