Rainbow Electronics AT75C310 - Manual (Page 105)

AT75C310
105
Slave Mode
In slave mode, the SPI waits for NPCSS to go active low
before receiving the serial clock from an external master. I n s la ve m o d e , C P O L , N C P H A a n d B I T S f i e l d s o f
SP_CSR0 are used to define the transfer characteristics.
The other chip select registers are not used in slave mode.
Figure 24. SPI in Slave Mode
S
R
Q
T
D
R
E
R
D
R
F
O
V
R
E
S
P
I
E
N
S
Serializer
SCK
SPIDIS SPIEN
SP_IER
SP_IDR
SP_IMR
SP_SR
MISO
LSB MSB
NSS
MOSI
SPIRQ
SP_RDR
RD
SP_TDR
TD