![Samsung S3C2416 Скачать руководство пользователя страница 82](http://html.mh-extra.com/html/samsung/s3c2416/s3c2416_user-manual_340824082.webp)
SYSTEM CONTROLLER
S3C2416X RISC MICROPROCESSOR
2-4
POWER
nRESET
EXTCLK
or XTIpll
VCO
output
SYSCLK
PLL is configured by S/W first time
Lock time
VCO is adapte to new clock frequency
.
The logic is operarted by
EXTCLK or XTIpll
SYSCLK is FOUT
Clock
disable
Figure 2-2. Power-On Reset Sequence
4.3 WATCHDOG
RESET
Watchdog reset is invoked when software fails to prevent the watchdog timer from timing out.
During the watchdog reset, the following actions occur :
•
All units(except some blocks listed in table 2-1 ) go into their pre-defined reset state.
•
All pins get their reset state, and BATT_FLT pin is ignored.
•
The nRSTOUT pin is asserted during watchdog reset.
Watchdog reset can be activated in normal and idle mode because watchdog timer can expire with clock.
Watchdog reset is invoked when watchdog timer and reset are enabled (WTCON[5] = 1, WTCON[0]=1) and
watchdog timer is expired. Watchdog reset is invoked then, the following sequence occurs. :
1. Watchdog reset source asserts.
2. Internal reset signals and nRSTOUT are asserted and reset counter is activated.
3. Reset counter is expired then, internal reset signals and nRSTOUT are deasserted.
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 ...