參數(shù)資料
型號: 34C60
廠商: SMSC Corporation
英文描述: PARALLEL PORT INTERFACE CHIP PERIPHERAL SIDE
中文描述: 并行接口芯片外設(shè)端
文件頁數(shù): 7/58頁
文件大小: 350K
代理商: 34C60
SMSC DS – PPC34C60
Page 15
Rev. 06/01/2001
ADVANCED INFORMATION
3.2 Design Example
FIGURE 3 shows a simple system design that uses most of the PPC34C60's interface functions. This example shows:
1)
A DRAM interface.
2)
An 8Kx8 NV-memory device interface using nStrobe Output 0 to latch the upper address bits and nChip Select Output
0 to enable the device.
3)
An interface to SMSC's FDC37C662 Super I/O Floppy Disk Controller. This section of the design illustrates how the
PPC34C60 can handle a direct memory access interface, four interrupts, and an additional chip select output
configured as a standard output pin. The SRST (reset output) is used to reset the floppy disk controller.
4)
The use of 10K bias resistors to implement a product ID code.
FIGURE 3 - TYPICAL SYSTEM INTERFACE
PPC34C60
A[8:9]
A[0:7]
nWR
nOE
nRAS
nCAS
SD[0:7]
A[8:9]
A[0:7]
nWR
nOE
nRAS
nCAS
SD[8:15]
1Mx8 DRAM
374
D[0:7]
Q[0:7]
CLOCK
nOE
A[0:7]
A[8:12]
nWR
nOE
SD[0:7]
Optional, 8Kx8 SRAM
EEPROM, etc.
FDC37C662
D[0:7]
A[0:7]
A[8:9]
nIOW
nIOR
FDRQ
nDACK
TC
IRQ3
IRQ4
PINTR
FINTR
AEN
RST
SD[0:15]
MA[8:9]
SA[0:7]
nSWR
nSRD
nRAS
nCAS
nIO16
nST0
nCE
nCS0
DREQ
nDACK
TC
IN0
IN1
IN2
IN3
CS1
SRST
IRQ
UPPER
ADDRESS
LATCH
TEST
Xin
Xout
Yin
Yout
24MHz
32
KHz
nPID
SD
0
SD
5
SD1
0
SD
15
nPID
Product
ID =
7BDEh
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