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20: Input / Output pin Characteristics
GP4020 GPS Baseband Processor Design Manual 185
20 INPUT / OUTPUT PIN CHARACTERISTICS
The GP4020 Electrical Characteristics, which are specific to the GP4020 device are shown in the “GP4020 GPS
Baseband Processor Datasheet”, DS5134, available from Zarlink Semiconductor.
In this section, the generic characteristics of the Input Output pins, and some timing diagrams of important external
interfaces are shown. The data shown here should be used in conjunction with the data in the datasheet specified
above.
20.1 Pin Types
The definitions of the type of each pin for the 100-pin GP4020 is shown in Table 20.1 below, with some additional
notes relating to them.
Pin
No.
Pin Name Pin
Type
IP / OP Cell
Type
5V
Tol.?
Hold
Cell?
Pull-up/ -
down
Tri-
state
Notes
1 SADD[0] IP/OP CLAIO1HD03N No Yes None
Note 3
2, 3
2 SADD[1] IP/OP CLAIO1HD03N No Yes None
Note 3
2, 3
3 SADD[2] IP/OP CLAIO1HD03N No Yes None
Note 3
2, 3
4 SADD[3] IP/OP CLAIO1HD03N No Yes None
Note 3
2, 3
5 SADD[4] IP/OP CLAIO1HD03N No Yes None
Note 3
2, 3
6 SADD[5] IP/OP CLAIO1HD03N No Yes None
Note 3
2, 3
7GND PWRCLALLVM
8 SADD[6] IP/OP CLAIO1HD03N No Yes None
Note 3
2, 3
9 SADD[7] IP/OP CLAIO1HD03N No Yes None
Note 3
2, 3
10 VDD PWR CLALLVP
11 NSCS[0] IP/OP CLAIO1HD01N No - None Yes 1, 2
12 NSCS[1] OP CLAOP01N No - None Yes 1
13 NSCS[2A] OP CLAOP01N No - None Yes 1
14 SADD[19] OP CLAOP03N No - None
Note 3
3
15 SDATA[0] IP/OP CLAIO1HD03N No Yes None Yes
16 SDATA[1] IP/OP CLAIO1HD03N No Yes None Yes
17 SDATA[2] IP/OP CLAIO1HD03N No Yes None Yes
18 SDATA[3] IP/OP CLAIO1HD03N No Yes None Yes
19 GND PWR CLALLVM
20 SDATA[4] IP/OP CLAIO1HD03N No Yes None Yes
21 SDATA[5] IP/OP CLAIO1HD03N No Yes None Yes
22 VDD PWR CLALLVP
23 SDATA[6] IP/OP CLAIO1HD03N No Yes None Yes
24 SDATA[7] IP/OP CLAIO1HD03N No Yes None Yes
25 NSOE IP/OP CLAIO1HD03N No Yes None Yes 1, 2
26 NSWE[1] IP/OP CLAIO1HD03N No Yes None Yes 1, 2
27 NSWE[0] IP/OP CLAIO1HD03N No Yes None Yes 1, 2
28 SDATA[8] IP/OP CLAIO1HD03N No Yes None Yes
29 SDATA[9] IP/OP CLAIO1HD03N No Yes None Yes
30 VDD PWR CLALLVDD
31 SDATA[10] IP/OP CLAIO1HD03N No Yes None Yes
32 SDATA[11] IP/OP CLAIO1HD03N No Yes None Yes
33 GND PWR CLALLGND