User`s guide

I/O Ports LZ87010 Advance User’s Guide
6-4 1/15/03
6.2 Signals
NOTE: *The I/O Type is shown for each use of a multi-use pin. For example, TXD0 and P3[1] share a pin.
TXD0 is shown as O, while P3[1] is shown as I/O.
Table 6-1. I/O Port Signal Descriptions
SIGNAL
NAME
SIGNAL
TYPE*
PIN
NO.
PIN
TYPE
FUNCTIONAL
UNIT
SHARED WITH DESCRIPTION
P0[7:0] I/O 83:76 I/O Ports INT[7:0] General Purpose Input/Output Pin
P1[7] I/O 8 I/O Ports nPSEN General Purpose Input/Output Pin
P1[6] I/O 7 I/O Ports nPSWR General Purpose Input/Output Pin
P1[5] I/O 6 I/O Ports CTCMP3B General Purpose Input/Output Pin
P1[4] I/O 5 I/O Ports CTCMP3A General Purpose Input/Output Pin
P1[3] I/O 4 I/O Ports CTCAP3B General Purpose Input/Output Pin
P1[2] I/O 3 I/O Ports CTCAP3A General Purpose Input/Output Pin
P1[1] I/O 2 I/O Ports General Purpose Input/Output Pin
P1[0] I/O 1 I/O Ports CTIN3 General Purpose Input/Output Pin
P2[7:0] O 25:18 O Ports XMA[15:8]
General Purpose Output-Only
Port (High Current)
P3[7] I/O 69 I/O Ports SDA
General Purpose Input/Output Pin
(Open Collector)
P3[6] I/O 68 I/O Ports SCL
General Purpose Input/Output Pin
(Open Collector)
P3[5] I/O 66 I/O Ports WFGIN0 General Purpose Input/Output Pin
P3[4] I/O 65 I/O Ports WFGIN1 General Purpose Input/Output Pin
P3[3] I/O 63 I/O Ports RXD1 General Purpose Input/Output Pin
P3[2] I/O 62 I/O Ports TXD1 General Purpose Input/Output Pin
P3[1] I/O 61 I/O Ports TXD0 General Purpose Input/Output Pin
P3[0] I/O 60 I/O Ports RXD0 General Purpose Input/Output Pin
P4[7:0] Port 4 is not implemented
P5[7:0] I/O 17:10 I/O Ports XMD[7:0] General Purpose Input/Output Pin
P6[7] I/O 91 I/O Ports CTCMP5B General Purpose Input/Output Pin
P6[6] I/O 90 I/O Ports CTCMP5A General Purpose Input/Output Pin
P6[5] I/O 89 I/O Ports General Purpose Input/Output Pin
P6[4] I/O 88 I/O Ports CTIN5 General Purpose Input/Output Pin
P6[3] I/O 87 I/O Ports CTCMP4B General Purpose Input/Output Pin
P6[2] I/O 86 I/O Ports CTCMP4A General Purpose Input/Output Pin
P6[1] I/O 85 I/O Ports General Purpose Input/Output Pin
P6[0] I/O 84 I/O Ports CTIN4 General Purpose Input/Output Pin
P7[7] I/O 44 I/O Ports CTIN1 General Purpose Input/Output Pin
P7[6] I/O 43 I/O Ports CTIN0 General Purpose Input/Output Pin
P7[5] I/O 41 I/O Ports CTCMP2B General Purpose Input/Output Pin
P7[4] I/O 40 I/O Ports CTCMP2A General Purpose Input/Output Pin
P7[3] I/O 39 I/O Ports CTCAP2B General Purpose Input/Output Pin
P7[2] I/O 38 I/O Ports CTCAP2A General Purpose Input/Output Pin
P7[1] I/O 37 I/O Ports General Purpose Input/Output Pin
P7[0] I/O 36 I/O Ports CTIN2 General Purpose Input/Output Pin
P8[7:0] I/O 35:28 I/O Ports XMA[7:0] General Purpose Input/Output Pin
P9[7:0] O 100:93 I/O Ports
General Purpose Output-Only
Port (High Current)