Intel library - incorrect pins on 16550

[cceckman]

Doing some design, trying to use the 16500 UART chip (in the Intel library). Realized the pinouts don't quite match the 16450, and are straight-up incorrect for the 16550; the /TXDRY and /RXRDY changed (were added) between the two models.)

See http://www.ti.com/lit/ds/symlink/pc16550d.pdf for the standard pinouts.

[cceckman]

Proposed solution, which marks a couple of the pins differently as well:

#
# 16550
#
DEF 16550 U 0 40 Y Y 1 F N
F0 "U" 0 100 70 H V C CNN
F1 "16550" 0 -100 70 H V C CNN
F2 "~" 0 0 60 H V C CNN
F3 "~" 0 0 60 H V C CNN
ALIAS 8250
DRAW
S -750 -1450 750 1450 0 1 0 N
X D0 1 -1050 1350 300 R 60 60 1 1 T
X D1 2 -1050 1250 300 R 60 60 1 1 T
X D2 3 -1050 1150 300 R 60 60 1 1 B
X D3 4 -1050 1050 300 R 60 60 1 1 I
X D4 5 -1050 950 300 R 60 60 1 1 T
X D5 6 -1050 850 300 R 60 60 1 1 T
X D6 7 -1050 750 300 R 60 60 1 1 T
X D7 8 -1050 650 300 R 60 60 1 1 T
X RCLK 9 1050 -1350 300 L 60 60 1 1 I
X SIN 10 1050 -150 300 L 60 60 1 1 I
X GND 20 -750 -1450 0 U 60 60 1 1 W N
X IRQ 30 -1050 -1250 300 R 60 60 1 1 O
X VCC 40 -750 1450 0 U 60 60 1 1 W N
X SOUT 11 1050 -250 300 L 60 60 1 1 O
X /RD 21 -1050 -1050 300 R 60 60 1 1 I L
X /OUT2 31 1050 350 300 L 60 60 1 1 O V
X CS0 12 -1050 150 300 R 60 60 1 1 I
X RD 22 -1050 -950 300 R 60 60 1 1 I
X /RTS 32 1050 450 300 L 60 60 1 1 O V
X CS1 13 -1050 50 300 R 60 60 1 1 I
X DDIS 23 1050 -750 300 L 60 60 1 1 O
X /DTR 33 1050 550 300 L 60 60 1 1 O V
X /CS2 14 -1050 -50 300 R 60 60 1 1 I L
X /TXRDY 24 1050 -550 300 L 60 60 1 1 O V
X /OUT1 34 1050 650 300 L 60 60 1 1 O V
X /BAUDOUT 15 1050 -1150 300 L 60 60 1 1 O V
X /ADS 25 -1050 -1150 300 R 60 60 1 1 I I
X MR 35 -1050 -1350 300 R 60 60 1 1 I
X XTAL1(I) 16 -1050 -250 300 R 60 60 1 1 I
X A2 26 -1050 250 300 R 60 60 1 1 I
X /CTS 36 1050 950 300 L 60 60 1 1 I L
X XTAL2(O) 17 -1050 -550 300 R 60 60 1 1 O
X A1 27 -1050 350 300 R 60 60 1 1 I
X /DSR 37 1050 1050 300 L 60 60 1 1 I L
X /WR 18 -1050 -750 300 R 60 60 1 1 I L
X A0 28 -1050 450 300 R 60 60 1 1 I
X /DCD 38 1050 1150 300 L 60 60 1 1 I L
X WR 19 -1050 -850 300 R 60 60 1 1 I
X /RXRDY 29 1050 -450 300 L 60 60 1 1 O V
X /RI 39 1050 1250 300 L 60 60 1 1 I L
ENDDRAW
ENDDEF

[ghost]

I've fixed pin issues. The 16550 and 8250/16450 are a bit different, that's why I've created two separate symbols.

The 16550, 16450/8250, 8252 symbols has been slightly altered to match KiCad Library Convention. If You or someone uses these symbols in existing schematic, they have to be updated, because it wasn't possible to adjust them without some pin movement. Sorry for inconvenience.