12 / 27 page
SL11RIDE
Document #: 38-08007 Rev. **
Page 12 of 27
8.2
SL11RIDE Pin Assignment and Description
Pin Assignment and Description
Pin Name
GPIO name
Pin No.
Pin Type
SL11RIDE Pin Description
VDD
1
Power
+3.3 VDC supply[1]
GND
14
GND
Digital ground
X1
15
Input
External 48-MHz Crystal or Clock input[2]
X2
16
Output
External crystal output. Not connect if X1 is used for clock input
VDD
17
Power
+3.3 VDC supply[1]
GND
40
GND
Digital ground
TEST
44
Input
NC—No Connection, MFG test only[3]
nRESET
48
Input
Master Reset. SL11RIDE Device active LOW reset input
VDD
50
Power
+3.3 VDC supply[1]
VDD
51
Power
+3.3 VDC supply[1]
SCL
GPIO31
60
Bidir
Serial Flash EEPROM clock
SDA
GPIO30
61
Bidir
Serial Flash EPROM data[4]
USBPU
GPIO29
62
Bidir
USB turn on/off D+ pull-up resistor
TXD
GPIO28
63
Output
UART TXD
GND
64
GND
Digital ground
GND
65
GND
Digital ground
RXD
GPIO27
66
Input
UART RXD
PWC
GPIO26
67
Bidir
Power control[5]
INTRQ/
HW_RESET/
RB
GPIO25
68
Bidir
Interrupt triggers in the SL11RIDE processor, or define for Hardware
Reset for CF[6]
DASP/
WP
GPIO24
69
Bidir
Device Active Present, or define for Write Protect for Smart Media[6]
IOWD
GPIO23
70
Bidir
IOWD—Write uses to indicate IDE write data transfer
CS0
GPIO22
71
Bidir
Chip Select 0
CS1
GPIO21
72
Bidir
Chip Select 1 or user defines Smart media card detect
IORD
GPIO20
73
Bidir
IORD uses to indicate IDE read data transfer
C_DET
GPIO19
74
Bidir
C_DET uses to detect CF
VDD
75
75
Power
+3.3 VDC Supply[1]
A2
GPIO18
76
Bidir
Address bit 2
A1
GPIO17
77
Bidir
Address bit 1
A0
GPIO16
78
Bidir
Address bit 0
GND
79
79
GND
Digital ground.
D15
GPIO15
80
Bidir
DATA port bit 15
D14
GPIO14
81
Bidir
DATA port bit 14
D13
GPIO13
82
Bidir
DATA port bit 13
D12
GPIO12
83
Bidir
DATA port bit 12
D 11
GPIO11
84
Bidir
DATA port bit 11
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
