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S3C2416X RISC MICROPROCESSOR
PRODUCT OVERVIEW
1-23
4.1 SIGNAL
DESCRIPTIONS
Table 1-4. S3C2416X Signal Descriptions
Signal
In/Out
Description
Reset, Clock & Power
XTIpll
AI
Crystal input signals for internal osc circuit.
When OM[0] = 0, XTIpll is used for MPLL CLK source and EPLL CLK
source.
If it isn't used, it has to be Low (0V)
XTOpll
AO
Crystal output signals for internal osc circuit.
When OM[0] = 0, XTIpll is used for MPLL CLK source and EPLL CLK
source. If it isn't used, it has to be float
NC AI
Not
connected.
EPLLCAP
AI
Loop filter capacitor for Extra PLL
XTIrtc
AI
32.768 kHz crystal input for RTC. If it isn’t used, it has to be High
(VDD_RTC=3.3V).
XTOrtc
AO
32.768 kHz crystal output for RTC. If it isn’t used, it has to be float.
CLKOUT[1:0]
O
Clock output signal. The CLKSEL of MISCCR(GPIO register) register
configures the clock output mode among the MPLL_CLK, EPLL CLK,
ARMCLK, HCLK, PCLK.
nRESET
ST
nRESET suspends any operation in progress and places S3C2416X into
a known reset state. For a reset, nRESET must be held to L level for at
least 4 OSCin after the processor power has been stabilized.
nRSTOUT
O
For external device reset control (nRSTOUT = nRESET & nWDTRST &
SW_RESET) *SW_RESET = nRSTCON of GPIO MISCCR
PWREN
O
core power on-off control signal
nBATT_FLT
I
Probe for battery state (Does not wake up at Sleep mode in case of low
battery state). If it isn’t used, it has to be High (3.3V).
OM[4:0]
I
OM[4:0] set operating modes of S3C2416X
Refer to “
S3C2416X Operation Mode Description Table
”
EXTCLK
I
External clock source.
When OM[0] = 1, EXTCLK is used for MPLL and EPLL CLK source.
If it isn't used, it has to be Low (0V).
Memory Interface (ROM/SRAM/NAND)
RADDR[25:0] O
RADDR[25:0] (Address Bus) outputs the memory address of the
corresponding bank .
RDATA[15:0]
IO
RDATA[15:0] (Data Bus) inputs data during memory read and outputs
data during memory write. The bus width is programmable among 8/16-
bit.
nRCS[5:0]
O
nRCS[5:0] (Chip Select) are activated when the address of a memory is
within the address region of each bank. The number of access cycles and
the bank size can be programmed.
nRWE
O
nRWE (Write Enable) indicates that the current bus cycle is a write cycle.
nROE
O
nOE (Output Enable) indicates that the current bus cycle is a read cycle.
Содержание S3C2416
Страница 33: ...S3C2416X RISC MICROPROCESSOR PRODUCT OVERVIEW 1 5 3 BLOCK DIAGRAM Figure 1 1 S3C2416X Block Diagram ...
Страница 38: ...PRODUCT OVERVIEW S3C2416X RISC MICROPROCESSOR 1 10 153 AIN 1 U14 195 EINT 10 GPG2 K15 237 SDATA 14 C18 ...
Страница 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Страница 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Страница 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Страница 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Страница 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Страница 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Страница 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Страница 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Страница 455: ...S3C2416X RISC MICROPROCESSOR HSMMC CONTROLLER 20 9 4 9 SD COMMAND ISSUE SEQUENCE Figure 20 9 Timeout Setting Sequence ...
Страница 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Страница 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Страница 653: ...S3C2416X RISC MICROPROCESSOR ELECTRICAL DATA 26 15 Figure 26 14 SDRAM READ WRITE Timing Trp 2 Trcd 2 Tcl 2 DW 16 bit ...
Страница 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...
Страница 672: ...MECHANICAL DATA S3C2416X RISC MICROPROCESSOR 30 2 Figure 27 2 330 FBGA 1414 Package Dimension 2 Bottom View ...