參數(shù)資料
型號(hào): SPEAR300-2
廠商: STMICROELECTRONICS
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, FLASH, 333 MHz, RISC MICROCONTROLLER, PBGA289
封裝: 15 X 15 MM, 1.70 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLIANT, LFBGA-289
文件頁(yè)數(shù): 36/83頁(yè)
文件大小: 1027K
代理商: SPEAR300-2
SPEAr300
Pin description
Doc ID 16324 Rev 2
41/83
TDM interfacing using GPIOs
In some configuration modes where less than 8 TDM devices are indicated in Table 10,
additional TDM devices can be supported by using GPIO pins. The TDM needs a dedicated
interrupt line, an SPI and an independent frame sync signal to interface each device. When
enough SPI chip selects signals are not available (SPI_I2C signals), the chip select can be
performed by a GPIO. In this case the number of possible TDM devices supported is:
Modes 5, 7, 8 and 9: up to 8 devices
Modes 3 and 10: up to 6 devices
Modes 11 and 12: up to 4 devices
Table 10.
Available peripherals in each configuration mode
Modes
FSMC
Bo
ot
pin
s
SPI
/I2C
Mu
lti
sla
v
e
co
ntr
o
l
I2
S
CLCD
DAC
Ca
mera
inte
rface
TDM
No
of
v
o
ic
e
de
vices
SDIO
/MMC
data
l
in
e
s
Key
b
o
a
rd
ke
ys
GPIOs
Max.
n
o
.of
I/O
s
Bid
irecti
onal
In
pu
to
n
ly
O
u
tp
ut
on
ly
Special
outputs
(s
yn
c)
Max.
n
o
.of
I/O
s
with
Interrupt
1
16-bit
NAND
4
18
6
12
6
2
16-bit
NOR
4
18
6
12
6
3
16-bit
NAND
1
18
28
22
4
81
1
8
9*9
62
38812414
5
411
1
28
9*9
42
38
4
14
6
81
1
8
9*9
58
38
8
4
14
7
411
1
28
9*9
42
38
4
14
8
8-bit
NOR
8
84
44
24
8
4
14
9
8-bit
NAND
/NOR
81
1
44
42
24
8
2
14
10
41
18-bit
2
8
9*9
36
32
4
10
11
1
14-bit
2
8
7*5
26
10
12
1
14-bit
2
8
7*5
26
10
13
411
1
8-bit
28
9*9
32
28
4
6
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