Pin Function Grouping

flux

How general should the groups be?
Suggested simplified grouping:
  • Power — VDD, VSS
  • Processor Interface — D0–D7, address, chip-select, bus control, reset, IRQ
  • Serial Interface — RXD, TXD and modem-control signals
  • Clock — XTLI, XTLO, RXC
Confirm this grouping and I’ll apply it.
A

adrian95

Group VSS as GND not Power

flux

Changed VSS to the GND functional group. VDD remains grouped under Power.
A

adrian95

Assign a Terminal Order from 1 to 10, starting with Power. Power should be Terminal Order 1, and Ground should be last, Terminal Order 10. For Orientation, set Power to "Top" and Ground to "Bottom." For the remaining sections/groups, you may decide the Terminal Order and Orientation yourself. For Orientation, distribute them between "Left" and "Right" — don't put everything on one side. Each group/section should have a different orientation

flux

I’ll assign section-level ordering from 1–10, lock Power at 1/Top and GND at 10/Bottom, then balance the remaining functional groups across Left and Right while preserving all pin identities and mappings.

flux

Assigned the 10 functional groups in order, with Power = 1 / Top and GND = 10 / Bottom. Groups 2–9 alternate between Left and Right, and all 28 pins remain intact with deterministic ordering.
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Pins

Symbol

Layout

3D View

Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
VSS
1
Unspecified
GND
GND
Bottom
10
CS0
2
Unspecified
Chip Select
Chip Select
Right
3
CS1B
3
Unspecified
Chip Select
Chip Select
Right
4
RESB
4
Unspecified
Bus Control
Bus Control
Left
6
RXC
5
Unspecified
Clock & Baud
Clock & Baud
Left
8
XTLI
6
Unspecified
Clock & Baud
Clock & Baud
Left
6
XLT0
7
Unspecified
Clock & Baud
Clock & Baud
Left
7
RTSB
8
Unspecified
Modem Control
Modem Control
Left
9
CTSB
9
Unspecified
Modem Control
Modem Control
Left
10
TXD
10
Unspecified
Serial Data
Serial Data
Right
8
DTRB
11
Unspecified
Modem Control
Modem Control
Left
8
RXD
12
Unspecified
Serial Data
Serial Data
Right
7
RS0
13
Unspecified
Address Select
Address Select
Left
2
RS1
14
Unspecified
Address Select
Address Select
Left
3
VDD
15
Unspecified
Power
Power
Top
1
DCDB
16
Unspecified
Interrupt & Status
Interrupt & Status
Right
11
DSRB
17
Unspecified
Interrupt & Status
Interrupt & Status
Right
10
D0
18
Unspecified
Data Bus
Data Bus
Right
5
D1
19
Unspecified
Data Bus
Data Bus
Right
6
D2
20
Unspecified
Data Bus
Data Bus
Right
7
D3
21
Unspecified
Data Bus
Data Bus
Right
8
D4
22
Unspecified
Data Bus
Data Bus
Right
9
D5
23
Unspecified
Data Bus
Data Bus
Right
10

W65C51N6TPG-14