Section 43 Electrical Characteristics
Rev. 1.00 Oct. 01, 2007 Page 1828 of 1956
REJ09B0256-0100
43.2.3
Power-Off and Power-On Order in RTC Power-Supply Backup Mode (Hardware
Standby)
To use RTC power supply backup mode, the RTC clock should be supplied.
First bring the
XRTCSTBI
pin low, and then make sure that the STATUS0 and STATUS1 pins
have been pulled high and low, respectively. After that, turn off the power supplies (VCCQ,
AVCC), (VCCQ-DDR), and (VDD, VDD-PLL1 to 3, VDD-DLL1 to 3). The power supply VDD-
RTC should remain on, and the
XRTCSTBI
pin should remain low.
Turn on the power supplies (VCCQ, AVCC), (VCCQ-DDR), and (VDD, VDD-PLL1 to 3, VDD-
DLL1 to 3) while the
XRTCSTBI
pin is low. After these power supplies become stable, bring the
XRTCSTBI pin high and negate the
PRESET
pin to high level.
43.2.4
Power-Off and Power-On Order in DDR-SDRAM Power-Supply Backup Mode
To use DDR-SDRAM power-supply backup mode, the DDR-SDRAM should be placed in the
self-refresh state. After the DDR-SDRAM is placed in the self-refresh state, bring the M-CKE pin
low. Make sure that the SELFS bit in the MIM register is set to 1, and then bring the
M_BKPRST
pin low. After that, turn off the power supplies (VCCQ, AVCC, VDD-RTC) and (VDD, VDD-
PLL1 to 3, VDD-DLL1 to 3). The power supply VCCQ-DDR should remain on and the
M_BKPRST
pin should remain low.
Turn on the power supplies (VCCQ, AVCC, VDD-RTC) and (VDD, VDD-PLL1 to 3, VDD-
DLL1 to 3) while the
M_BKPRST
pin is low. After these power supplies become stable, negate
the
M_BKPRST
and
PRESET
pins to high level.
Содержание SH7763
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Страница 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Страница 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Страница 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Страница 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Страница 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Страница 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Страница 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Страница 686: ...Section 14 Direct Memory Access Controller DMAC Rev 1 00 Oct 01 2007 Page 620 of 1956 REJ09B0256 0100 ...
Страница 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Страница 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Страница 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Страница 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Страница 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Страница 1060: ...Section 23 Gigabit Ethernet Controller GETHER Rev 1 00 Oct 01 2007 Page 994 of 1956 REJ09B0256 0100 ...
Страница 1062: ...Section 24 IP Security Accelerator SECURITY Rev 1 00 Oct 01 2007 Page 996 of 1956 REJ09B0256 0100 ...
Страница 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Страница 1184: ...Section 27 Serial Communication Interface with FIFO SCIF Rev 1 00 Oct 01 2007 Page 1118 of 1956 REJ09B0256 0100 ...
Страница 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Страница 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Страница 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Страница 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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Страница 2026: ...SH7763 Hardware Manual ...