Arm Enterprises GP4020 User Manual

Page of 215
20: Input / Output pin Characteristics
GP4020 GPS Baseband Processor Design Manual
187
Pin
No.
Pin Name
Pin
Type
IP / OP Cell
Type
5V
Tol.?
Hold
Cell?
Pull-up/ -
down
Tri-
state
Notes
77
U2RXD
IP
SCJIP1NR
Yes
No
None
-
78
U1TXD
OP
CLAOP03L1
-
-
-
No
79
U1RXD
IP
SCJIP1NR
Yes
No
None
-
80
PLLGND
PWR
CLPLLVM
81
PLLVDD
PWR
CLPLLVP
82
GND
PWR
CLALLGND
83
PLLAT1
OP
CLHANPOP
84
NICE
IP
CLAIP1NR
No
No
None
-
85
VDD
PWR
CLALLVDD
86
TCK / bdiag[0] / XReq
IP/OP
CLAIO1NR01N
No
No
None
Yes
87
TDI / bdiag[1] / XWrite
IP/OP
CLAIO1NR01N
No
No
None
Yes
88
TDO / bdiag[2] /XBurst
IP/OP
CLAIO1NR01N
No
No
None
Yes
89
TMS / bdiag[3] / XCon
IP/OP
CLAIO1NR01N
No
No
None
Yes
90
NTRST
IP
CLAIP1NR
No
No
None
-
91
GPIO[7] / DT1
IP/OP
SCJIO1NR01N
Yes
No
None
Yes
92
GPIO[6]
IP/OP
SCJIO1NR01N
Yes
No
None
Yes
93
GPIO[5]/DISCOP
IP/OP
SCJIO1NR01N
Yes
No
None
Yes
94
GND
PWR
CLALLGND
95
GPIO[4] /DISCIO
IP/OP
SCJIO1NR01N
Yes
No
None
Yes
96
GPIO[3] / BSIO_SS[1]
IP/OP
SCJIO1NR01N
Yes
No
None
Yes
97
GPIO[2] / BSIO_SS[0]
IP/OP
SCJIO1NR01N
Yes
No
None
Yes
98
VDD
PWR
CLALLVDD
99
GPIO[1] / BSIO_DATA
IP/OP
SCJIO1NR01N
Yes
No
None
Yes
100
GPIO[0] / BSIO_CLK
IP/OP
SCJIO1NR01N
Yes
No
None
Yes
Table 20.1  GP4020 Pin Types
NOTES:-
1)  Pin is set to High Impedance (Tri-state) in RF Power-down mode. RF Power-down achieved when RF_PD bit
or RF_SLEEP bit in PCL POW_CNTL register set to “1”.
2)  Pin set to be an Input when GP4020 in Test Mode
3)  Pin set to be High Impedance (Tri-state) when GP4020 in Test Mode
20.2 Input Delays
The following tables show the delays for all Logic Inputs on the GP4020. The delays quoted below are shown at
midpoint temperature (+25
°C), supply voltage (+3.3V) and silicon process for all input lines in the GP4020.
Key: IP 
→ D ↑  
signifies Time from Input going High, to registered Data going High
IP 
→ D ↓  
signifies Time from Input going Low, to registered Data going Low
20.2.1  3.3V Inputs: 
CLAIO1HD01N, CLAIO1HD03N, CLAIO1NR01N, CLAIP1GD, CLAIP1GU,
CLAIP1NR
Switching characteristics at 25
°C, 3.3V supply.