Operating Modes
MOTOROLA
SDRAM Memory Controller
24-23
Figure 24-15. Burst Write Followed by On-Page Read Timing Diagram
Figure 24-16. Single Read Followed by On-Page Write Timing Diagram
Figure 24-17. Burst Read Followed by On-Page Write Timing Diagram
24.6.3 Precharge Command Mode (SMODE = 001)
The Precharge Command Mode (SMODE = 001) is used during SDRAM device initialization, and to
manually deactivate any and all active banks. While in this mode, an access (either read or write) to the
SDRAM address space will generate a precharge command cycle. SDRAM address bit A10 determines
t
RCD
NOP
WRIT WRIT WRIT NOP READ
WRIT
CAS Latency
SDCLK
ADDR
RAS, CAS, SDWE
DATA
D1n
D2n
D3n
D4n
D1b
TBST
ACT
CSDx
COL1n
COLb
ROWn
COL2n COL3n COL4n
t
RCD
SDCLK
ADDR
RAS,
CAS,
SDWE
DATA
COLn
COLb
ACT
NOP
READ
TBST
NOP
NOP
D1n
D2b
CAS Latency
NOP
WRIT
NOP
CSDx
ROWn
t
RCD
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
READ
CAS Latency
SDCLK
ADDR
RAS, CAS, SDWE
DATA
D1n
D2n
D3n
D4n
WRIT NOP
D1b
ACT
CSDx
COL1n
COLb
ROWn
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 ...