diff options
author | 2014-10-09 18:44:44 +0000 | |
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committer | 2014-10-09 18:44:44 +0000 | |
commit | 8d51b3fe253d28dfa371913d325da76866f23ffa (patch) | |
tree | 845ad6a080d9586a727407ea735ab36d045dd4f5 /src/emu/machine/pit8253.h | |
parent | 0a760ee7cedf6f26d4f1e5e9a959fd5177931d82 (diff) |
removed this duplicate sketch
Diffstat (limited to 'src/emu/machine/pit8253.h')
-rw-r--r-- | src/emu/machine/pit8253.h | 23 |
1 files changed, 3 insertions, 20 deletions
diff --git a/src/emu/machine/pit8253.h b/src/emu/machine/pit8253.h index aa3997d4766..a6e4080aad9 100644 --- a/src/emu/machine/pit8253.h +++ b/src/emu/machine/pit8253.h @@ -1,9 +1,11 @@ /*************************************************************************** Intel 8253/8254 - Programmable Interval Timer + As uPD71054C (8MHz), uPD71054C-10 (10MHz) - it is a clone of Intel 82C54 + also available in 28-pin QFP and 44-pin PLCC (many pins NC) + _____ _____ D7 1 |* \_/ | 24 VCC D6 2 | | 23 _WR @@ -19,25 +21,6 @@ GND 12 |_____________| 13 OUT1 -********************************************************************** - _____ _____ - D7 <-> 1 |* \_/ | 24 --- Vdd - D6 <-> 2 | | 23 <-- _WR - D5 <-> 3 | | 22 <-- _RD - D4 <-> 4 | | 21 <-- _CS - D3 <-> 5 | | 20 <-- A1 - D2 <-> 6 | uPD71054C | 19 <-- A0 - D1 <-> 7 | | 18 <-- CLK2 - D0 <-> 8 | | 17 --> OUT2 - CLK0 --> 9 | | 16 <-- GATE2 - OUT0 <-- 10 | | 15 <-- CLK1 - GATE0 --> 11 | | 14 <-- GATE1 - GND --- 12 |_____________| 13 --> OUT1 - - uPD71054C (8MHz), uPD71054C-10 (10MHz) - it is a clone of Intel 82C54 - also available in 28-pin QFP and 44-pin PLCC (many pins NC) - - ***************************************************************************/ #ifndef __PIT8253_H__ |