參數(shù)資料
型號(hào): SAA7381
廠(chǎng)商: NXP SEMICONDUCTORS
元件分類(lèi): 消費(fèi)家電
英文描述: ATAPI CD-R block decoder
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP144
文件頁(yè)數(shù): 55/108頁(yè)
文件大小: 380K
代理商: SAA7381
1997 Aug 12
55
Philips Semiconductors
Objective specification
ATAPI CD-R block decoder
SAA7381
This is intended for big-endian high byte then low byte accesses to 16-bit register space.
Fig.7 Holding register used in 16-bit access via 8-bit bus.
handbook, full pagewidth
MGK509
16-BIT
REGISTER FILE
A1 to An
D8 to D15
Q8 to Q15
Q0 to Q7
D0 to D7
address bus
data bus
0
1
MUX
0
1
MUX
read
8-BIT
HOLDING
REGISTER
(FF6F)
A0
loaded when:
(A0 = 0 and write) or (A0 = 0 and read)
8
8
8
Fig.8 Stacking 8-bit holding register during interrupt service.
handbook, halfpage
read/write high1
read/write low1
save register
read/write high2
read/write low2
restore register
MGK510
interrupt
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