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author Lord-Nightmare <Lord-Nightmare@users.noreply.github.com>2016-02-23 13:45:12 -0500
committer Lord-Nightmare <Lord-Nightmare@users.noreply.github.com>2016-02-23 13:45:12 -0500
commite27949219d4c770b80e3cd519701e1afa07d1366 (patch)
tree5c8d745b0b867ae964ac2447a799d53784f13bd2 /src/devices/machine/ay31015.cpp
parent9740102e6414317295b4afe0411ed0f43f5cfc80 (diff)
Xerox NoteTaker: Finished IOCPU memory map documentation. Hooked up the two UARTS. Begin hookup of the screen/CRTC. Fixed an issue with writes to ROM-mapped areas shadowing to RAM. Added 960KHz xtal for the keyboard UART. [Lord Nightmare]
AY-3-1015 UART: Fixed two swapped pin functions. [Lord Nightmare]
Diffstat (limited to 'src/devices/machine/ay31015.cpp')
-rw-r--r--src/devices/machine/ay31015.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/devices/machine/ay31015.cpp b/src/devices/machine/ay31015.cpp
index f1db92a19d8..659e16e281b 100644
--- a/src/devices/machine/ay31015.cpp
+++ b/src/devices/machine/ay31015.cpp
@@ -40,8 +40,8 @@ Device Data:
-- Pin 21 - XR - External Reset - resets all registers to initial state except for the control register
-- Pin 35 - NP - No Parity - "1" will kill any parity processing
-- Pin 36 - TSB - Number of Stop Bits - "0" = 1 stop bit; "1" = 2 stop bits. If "1", and 5 bits per character, then we have 1.5 stop bits
--- pin 37 - NB1
--- pin 38 - NB2 - Number of bits per character = NB1 + (NB2 * 2) + 5
+-- pin 37 - NB2
+-- pin 38 - NB1 - Number of bits per character = NB1 + (NB2 * 2) + 5
-- pin 39 - EPS - Odd or Even Parity Select - "0" = Odd parity; "1" = Even parity. Has no effect if NP is high.
-- Pin 34 - CS - Control Strobe - Read NP, TSB, EPS, NB1, NB2 into the control register.