GR2316 / GR2320 Data Sheet
Table 3-1: Pin Descriptions (Continued)
Pin
Pin
Description
Number
Name
P3
P2
P1
N1
M1
L1
PIO(0)
PIO(1)
PIO(2)
PIO(3)
PIO(4)
PIO(5)
PIO(6)
PIO(7)
PIO(8)
PIO(9)
PIO(10)
PIO(11)
NC
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
Programmable input/output line
No connection. Do not connect this pin.
F1
E1
D1
C1
B1
A1
D8, D9,
C9, B10,
E9, F8,
F9, G10,
E8, C8,
D10, C10,
E10, G8,
F10, G9
K1
P8
G1
P9
A9
A10
RESET
CEXT
Reset high (input debounced so must be high for >5ms)
Connection to external decoupling capacitor
No connection. Do not connect this pin.
NC
VREG_IN
VDD_PIO
VDD_PADS
Linear regulator voltage input (3 VOLTS)
Positive supply for PIO (connect to +3 volts supply)
Positive supply for digital input/output ports (connect to +3
volts supply)
M14
L14
VDD_USB
VDD_DIG
Positive supply for UART/USB ports (connect to +3 volts
supply)
Positive 1.8V supply output for VDD_MEM, FLASH_EN and
VDD_CORE
G14
H14
J14
FLASH_EN
VDD_MEM0
VDD_CORE
VDD_MEM1
Connect to VDD_DIG
Connect to VDD_DIG
Connect to VDD_DIG
Connect to VDD_DIG
K14
32197 - F
May 2006
8 of 17
GENNUM [ GENNUM CORPORATION ]
