Toshiba H1 Series - Manual (Page 481)

TMP92CZ26A
92CZ26A-478
3.17.1 Block diagram
It shows block diagram and connection to SD card in Figure 3.17.1.
Note1: SPCLK, SPCS , SPDO and SPDI pins are set to input port (Port PR3, PR2, PR1, PR0) by reset.
These signals are needed pull-up resister to fix voltage level, could you adjust resistance value for your final
set.
Note2: Please use general input port or interrupt signal for WP (Write Protect) and CD (Card Detect).
Figure 3.17.1 Block diagram and Connection example
f
SYS
Baud rate
Generator
SPIMD/CT
16bit
SPCLK
SPCS
SPIIE
16bit
SPICR
SPIC (SPI Controller) SD Card
SCLK
CS
Port
WP (Write Protect)
INTn
CD (Card Detect)
100K
Ω
100K
Ω
SPIST
16bit
INTSPI
16bit
SPITD
T
rans
mitt,Rec
eiv
e
ont
roller
SPDO
16bit
SPIRD
SPDI
DI
DO
100K Ω
100K
Ω
Internal dat
a b
u
s
TX FIFO
8
×32
RX FIFO
8
×32
16bit
RX shift re
gister
TX shift re
gister