GS81314PD19 Datasheet, PDF (18/39 Pages) GSI Technology – 144Mb SigmaQuad-IVe™ Burst of 4 Single-Bank ECCRAM™

GS81314PD19/37GK-933/800
Loopback Mode Input Group Definition and Input-to-Output Pin Mapping
Inputs are divided into 2 groups because there are up to 28 inputs to train (22 address, 2 control, and 4 KD clocks), but as few as 18
outputs available to loop them back to (in x18 devices).
There are 20 inputs per group - one per Q, QINV output in x18 devices, and one per two Q, QINV outputs in x36 devices.
Input Pins
Input Signals
Output Pins
Bit #
GP1
GP2
GP1
GP2
x18
x36
Output Signals
x18
x36
1
8T
---
SA2
RSVD
n/a
12Y
n/a
QINV1
2
8P
8V
SA4
NU
13V
13V, 12W
Q8
Q8, Q17
3
8M
8T
SA6
SA2
13T
13T, 12U
Q7
Q7, Q16
4
8J
---
SA8
RSVD
13P
13P, 12R
Q6
Q6, Q15
5
9H
9L
SA16
KD0
13N
13N, 12P
Q5
Q5, Q14
6
8G
9K
SA10
KD0
12J
12J, 12M
Q4
Q4, Q13
7
9F
7H
SA18
W
12G
12G, 13H
Q3
Q3, Q12
8
8E
---
SA12
RSVD
12F
12F, 13G
Q2
Q2, Q11
9
9D
---
SA20
RSVD
12D
12D, 13E
Q1
Q1, Q10
10
8C
---
SA14
RSVD
12B
12B, 13C
Q0
Q0, Q9
20
6C
---
SA13
RSVD
12A
12A
QINV0
QINV0
1
8T
---
SA2
RSVD
2Y
2Y
QINV1
QINV2
11
6T
---
SA1
RSVD
2W
2W, 1V
Q9
Q18, Q27
12
6P
6V
SA3
SA21
2U
2U, 1T
Q10
Q19, Q28
13
6M
---
SA5
RSVD
2R
2R, 1P
Q11
Q20, Q29
14
6J
7N
SA7
R
2P
2P, 1N
Q12
Q21, Q30
15
5H
5L
SA15
KD1
2M
2M, 2J
Q13
Q22, Q31
16
6G
5K
SA9
KD1
1H
1H, 2G
Q14
Q23, Q32
17
5F
---
SA17
RSVD
1G
1G, 2F
Q15
Q24, Q33
18
6E
---
SA11
RSVD
1E
1E, 2D
Q16
Q25, Q34
19
5D
6C
SA19
SA13
1C
1C, 2B
Q17
Q26, Q35
20
6C
---
SA13
RSVD
n/a
2A
n/a
QINV3
Notes:
1. Blue shading indicates input pins that are unused (NU) in certain device configurations. During Loopback Mode, the associated
output pins loop back the states of those input pins regardless whether they are used or unused.
2. Gray shading indicates Group 2 inputs that are reserved (RSVD) for future use. During Loopback Mode, the associated output
pins act as if they were looping back input pins tied Low.
3. Green shading indicates QINV output pins that are unused (NU) when Data Inversion is disabled. During Loopback Mode, they
loop back the states of the associated input pins regardless whether Data Inversion is enabled or disabled.
4. The 18 unused Q and the 2 unused QINV in x18 devices remain in their “NU” states during Loopback Mode.
5. Bit #1 and bit #20 are repeated in the table to show that they are used in both the right and left side data bytes in x36 devices.
Rev: 1.02 3/2016
18/39
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2015, GSI Technology