s3c2410a Samsung Semiconductor, Inc., s3c2410a Datasheet - Page 476

• Manufacturer Part Number: s3c2410a
• Description: 16/32-bit Risc Arm Microprocessor
• Manufacturer: Samsung Semiconductor, Inc.

SPI INTERFACE
BLOCK DIAGRAM
22-2
Data
Bus
REQ0 / REQ1
REQ0 / REQ1
ACK0 / ACK1
ACK0 / ACK1
INT 0 / INT 1
INT 0 / INT 1
PCLK
PCLK
Prescaler Register 0
Prescaler Register 1
Status Register 0
Status Register 1
8bit Prescaler 0
8bit Prescaler 1
Figure 22-1. SPI Block Diagram
8
8
8
8
(INT DMA 1)
(INT DMA 0)
APB I/F 1
APB I/F 0
MSB
MSB
LSB
LSB
Tx 8bit Shift Reg 0
Rx 8bit Shift Reg 0
Tx 8bit Shift Reg 1
Rx 8bit Shift Reg 1
SPI Clock
SPI Clock
(Master)
(Master)
CPHA
CPOL
CPHA
CPOL
MSB
MSB
LSB
LSB
CLOCK Logic 0
CLOCK Logic 1
Clock
Clock
MSTR
MSTR
Slave
Master
Slave
Master
Slave
Master
Slave
Slave
Master
Slave
Master
Slave
Master
Slave
SPIMISO 1
SPIMOSI 1
SPIMISO 0
SPIMOSI 0
SPICLK 1
S3C2410A
SPICLK 0
nSS 1
nSS 0
MISO
MOSI
MISO
MOSI
SCK
SCK
/SS
/SS