![Samsung S3C2416 User Manual Download Page 131](http://html.mh-extra.com/html/samsung/s3c2416/s3c2416_user-manual_340824131.webp)
S3C2416X RISC MICROPROCESSOR
STATIC MEMORY CONTROLLER
5-7
3.3 SYNCHRONOUS
READ/SYNCHRONOUS BURST READ
Single synchronous read operations have the same control signal timing as an asynchronous read operation, but
with different timing requirements for setup and hold relative to the clock. Because the output signals of the SMC
are generated internally from clocked logic, the timing for single synchronous reads is the same as for
asynchronous reads.
Synchronous burst read transfers are performed differently to asynchronous burst reads, because of the internal
address incrementing performed by synchronous burst devices. The PADDR outputs are held with the initial
address value, and the PSMAVD output is asserted during the transfer to indicate that the address is valid.
Four, eight, or continuous synchronous burst lengths are supported, and are controlled by the BurstLenRead bits
in the Bank Control Register SMBCRx when the SyncEnRead and BMRead bits indicate that the device supports
synchronous bursts.
Figure 5-7 shows continuous burst read transfers, where WSTRD = 3 and WSTBRD = 0.
Synchronous Burst READ
SMCLK
ADDR
DATA(IN)
nCS
nOE
SMAVD
D(A)
D(A+4)
D(A+8)
D(A+C)
A
WSTRD=3
Figure 5-7. External Synchronous Fixed Length Four Transfer Burst Read
Summary of Contents for S3C2416
Page 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Page 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Page 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Page 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Page 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Page 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Page 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Page 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Page 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Page 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Page 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...