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SPEAR300 Fiches technique(PDF) 41 Page - STMicroelectronics

No de pièce SPEAR300
Description  Embedded MPU with ARM926 core, flexible memory support, powerful connectivity features and human machine interface
PDF  83 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPEAR300 Fiches technique(HTML) 41 Page - STMicroelectronics

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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
GPIOs
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
28
22
4
81
1
8
8
9*9
62
38812414
5
411
1
28
9*9
42
38
4
14
6
81
1
8
8
9*9
58
38
8
8
4
14
7
411
1
28
9*9
42
38
4
14
8
8-bit
NOR
8
84
44
24
8
8
4
14
9
8-bit
NAND
/NOR
81
1
44
42
24
8
8
2
14
10
41
18-bit
2
8
9*9
36
32
4
10
11
1
1
1
14-bit
2
8
7*5
26
26
10
12
1
1
14-bit
2
8
7*5
26
26
10
13
411
1
8-bit
28
9*9
32
28
4
6



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