24-70
MC9328MX1 Reference Manual
MOTOROLA
SDRAM Memory Controller
Figure 24-57. SyncFlash Clock Suspend Timer Operation Timing Diagram
24.9.7 Powerdown Operation with SyncFlash
The SyncFlash enters powerdown mode when the (CLKST [1:0] bits are set to 01 in the SDRAM control
register (SDCTL0/1) and only when no bank is active. In powerdown mode, the clock to the SyncFlash
memory will stop. Again, the powerdown mode can only entered when all banks within the memory area
are inactive. Figure 24-58 illustrates the operation of SyncFlash powerdown mode.
Figure 24-58. SyncFlash Powerdown Operation Timing Diagram
24.10 Deep Powerdown Operation with SyncFlash
The SyncFlash enters deep powerdown mode when the MC9328MX1 enters stop mode (both the MCU
PLL and System PLL are shut down). Upon entry of deep powerdown mode, all active memory banks are
closed, the clock input to the SyncFlash stops, and the RESET_SF signal is asserted. The SyncFlash exits
deep powerdown mode after the MC9328MX1 exits stop mode (when the MCU PLL and System PLL
have waken up) and the clock to the SyncFlash is stable. The RESET_SF signal is then deasserted.
Figure 24-59 illustrates the operation of the SyncFlash when entering deep powerdown mode.
t
CL = 2
64 (CLKST=10) or 128 (CLKST=11) clocks
SDCLK
ADDR
RAS,
CAS,
SDWE
CSDx
DATA
DATA
A
TBST
READ
SDCKEx
COLUMN
A
COLUMN
B
COLUMN
B
READ
PRE-ALL
t
RP (Minimum)
SDCLK
ADDR
RAS,
CAS,
SDWE
CSDx
DATA
SDCKEx
ROW
ACT
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...