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--- boards:ecb:2s1p [2021/10/24 08:58] – Revision from 2021-10-24
+++ boards:ecb:2s1p [2026/06/15 12:48] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+/* Imported from Wayback Machine
+   Original URL : https://retrobrewcomputers.org/doku.php?id=boards:ecb:2s1p
+   Snapshot date: 2020-09-24
+   Generator    : wayback-archiver
+*/
+====== 2S1P - Dual Serial/Single EPP Parallel Interface ======
+The ECB 2S1P (or SPP for short) board provides two RS-232 level serial interfaces and a single PC/AT-compatible Centronics parallel port using the Texas Instruments TL16C552 multiport interface chip.
+{{[[lib:plugins:ckgedit:fckeditor:userfiles:image:boards:ecb:2s1p:ecb_2s1p_001.png]] 2S1P Board Plot}}
+===== Overview =====
+The ECB 2S1P board provides two 8250/16C550 similar serial interfaces (which is clocked at 1.8432mhz to provide common baud rates from 300 to 115,200) and a single PC/AT-EPP compatible parallel printer port using the TL16C552B PLCC chip and related level shifters. Two TTL-level headers are provoded for those wanting to use USB TTL interfaces directly.
+The board was developed primarily for and tested for use with the SBC-188 80C188-based processor board, but it should work with other boards. The SBC-188 BIOS has been modified to enable MS-DOS to use this board as standard COM/LPT ports.
+===== Errata =====
+None. The first production run was submitted for manufacturing and is expected in a few weeks.
+===== Resources =====
+^Filename                                                                                                                    ^Size ^Updated   ^
+|[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:2s1p:ecb_2s1p-1.0-001_sch.pdf|ECB 2S1P-1.0-001_sch.pdf]]|724Kb|2019-12-27|
+|[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=boards:ecb:2s1p:ecb_2s1p-1.0-001_pcb.pdf|ECB 2S1P-1.0-001_pcb.pdf]]|500Kb|2019-12-27|
+|                                                                                                                            |     |          |
+\\