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SYSTEM CONTROLLER
S3C2416X RISC MICROPROCESSOR
2-34
8.5 CONTROL OF RETENTION PAD(I/O) WHEN NORMAL MODE AND WAKE-UP FROM SLEEP MODE.
Figure 2-13. Usage of PWROFF_SLP
S3C2416 has a lot of retention PADs. Retention pad’s ability is remaining data when internal logic power is off. In
normal mode, PWROFF_SLP signal which from RSTCON register can control about PAD output. If SLP_IN signal
has LOW value, data assigned to specific PAD go out through level shifter and latch. Otherwise If SLP_IN signal
has HIGH value, output of level shifter cannot pass therefore retention PAD produces latched data only.
When the system enters into a sleep mode, SLP_IN value has HIGH value as a result of PWROFF’s HIGH state.
Futhermore, PWROFF_SLP register bit is automatically set to 1’b1.
When the system wakeup from sleep mode, SLP_IN still remains HIGH state until user configure PWROFF_SLP
bit as 1’b0. Therfore, user has to configure PWROFF_SLP bit to produce internal logic data through PAD after
waking up from sleep mode.
Pin lists that are not affected by PWROFF_SLP
OM[4:0], EINT[15:0], AIN[9:0],
Vref, DM_UDEV, DP_UDEV, REXT, X0_UDEV, X1_UDEV,
nTRST, TMS, TCK, TDI, TDO,
XTOpll, XTIpll, EPLLCAP,
XTRrtc, XTOrtc, nRESET, nRSTOUT, PWREN, BATT_FLT, EXTCLK,
GPF, GPG[7:0]
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 ...