STV0674-100TQFP STMICROELECTRONICS [STMicroelectronics], STV0674-100TQFP Datasheet - Page 30

• Manufacturer Part Number: STV0674-100TQFP
• Description: Tri-mode CMOS digital camera co-processor
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Pinout and Pin Description
5.2.1
30/35
Power on/ low power default pin states
The initial state of SFP pins varies depending on the power on state of the NAND flash / SMC detect
pin, SDRAM detect pin and package detect pin. The default pin states are detailed in
TQFP_SEL
a. SFP 0-22 default to inputs on reset and in low power states. SFP 0-22 should therefore not be left
b. Pull Up required. See
c. SFP 3> Pull Up if NAND or SMC present /Down if not, See
d. SFP 9> Pull down required if pin not used, must be held low at power on.
e. SFP 14> Pull down required for power latching otherwise pull up required.
f. SFP 16> Pull Up required, if SMC present. (SFP 3 must also be pulled up)
g. SFP 38> Pull resistor required if NAND present, value 10k .
h. SFP 60> Pull Up if SDRAM present /Down if not, See
SFP0
floating and must be configured by external circuit. See
0
1
1
1
Pin state at power on
CS_NAND
SFP3
X
X
1
0
Table 11: Power-on/low-power default pin states
Section 5.2.1
CS_SDRAM
SFP60
X
0
1
0
.
SFP 25-32,
Flash Port
Output
35-39
Ouput
Input
Section 5.2.1
Section 5.2.1
Section 5.2.1
SFP 23, 24, 33,
Initial state
Non-Flash
34, 40-60
Reserved
SDRAM
Output
Input
Input
for state of SFP 23-60
.
SFP0-22
GPIO
Input
Input
Input
Table 11
STV0674
.