
PRELIMINARY
PRODUCT OVERVIEW
S3C6400 RISC MICROPROCESSOR
1-22
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
I/O
Function
Signal
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Xm0INTata
I
IO
I
INT GPP[8]
EINT8[8]
Xm0RESETata
O
IO
I
RESET
GPP[9]
EINT8[9]
Xm0INPACKata
I
IO
I
INPACK
GPP[10]
EINT8[10]
Xm0REGata
O
IO
I
REG GPP[11]
EINT8[11]
Xm0WEata
O
IO
I
WEn GPP[12]
EINT8[12]
Xm0OEata
O
IO
I
OEn
GPP[13]
EINT8[13]
Xm0CData
I
IO
I
CDn
GPP[14]
EINT8[14]
Signal
I/O
Description
ADDR[15:0]
O
Memory port 0 common address bus
DATA[15:0]
O
Memory port 0 common data bus
nCS[7:6]
O
Memory port 0 DRAM Chip Select support up to 2 memory bank
nCS[5:4]
O
Memory port 0 SROM/CF Chip Select support up to 2 memory bank.
nCS[3:2]
O
Memory port 0 SROM / OneNAND / NAND Flash Chip Select support up to 2
memory bank.
nCS[1:0]
O
Memory port 0 SROM Chip Select support up to 2 memory bank.
nBE[1:0]
O
Memory port 0 SROM Byte Enable
WAITn
I
Memory port 0 SROM Wait
nOE
O
Memory port 0 SROM / OneNAND Output Enable
nWE
O
Memory port 0 SROM / OneNAND Write Enable
ADDRVALID
O
Memory port 0 OneNAND Address Valid
SMCLK
O
Memory port 0 OneNAND Clock
RDY[0]
I
Memory port 0 OneNAND Bank 0 Ready
RDY[1] I
Memory port 0 OneNAND Bank 1 Ready
INT[0]
I
Memory port 0 OneNAND Bank 0 Interrupt
INT[1]
I
Memory port 0 OneNAND Bank 1 Interrupt
RP O
Memory port 0 OneNAND Reset
ALE
O
Memory port 0 NAND Flash Address Latch Enable
CLE
O
Memory port 0 NAND Flash Command Latch Enable
FWEn
O
Memory port 0 NAND Flash Write Enable
FREn
O
Memory port 0 NAND Flash Read Enable
RnB
I
Memory port 0 NAND Flash Ready/Busy
nIORD_CF
O
Memory port 0 CF Read strobe for I/O mode
nIOWR_CF
O
Memory port 0 CF Write strobe for I/O mode
IORDY
I
Memory port 0 CF Wait signal form CF card
INT I
Memory port 0 CF Interrupt request from ATAPI controller