Category:83Plus:Ports:By Address - Revision history

NonstickAtom: Removed/amended an incorrect statement

2020-12-09T18:11:27Z

Removed/amended an incorrect statement

2013-02-20T06:21:34Z

shorthand

2013-02-20T00:58:05Z

2011-11-26T02:04:21Z

2011-10-29T03:24:41Z

2011-10-28T04:35:12Z

2011-10-28T04:11:26Z

2011-10-28T04:11:08Z

2011-10-28T04:09:56Z

2011-10-28T03:48:16Z

@@ Line 7: / Line 7: @@
 '''Note on terminology:''' P:nn is shorthand for port nn, e.g. P:04 refers to port 4.
-'''A note about 83+BE ports:''' On the 83+BE, many of the ports have been mirrored to the 00h-07h region. If a port is mirrored, when it is being read, take the bitwise-AND with 07h to find the actual port being accessed. All writes to mirrored ports are ignored.
+'''A note about 83+BE ports:''' On the 83+BE, many of the ports have been mirrored to the 00h-07h region. If a port is mirrored, when it is being read, take the bitwise-AND with 07h to find the actual port being accessed. Writes to mirror ports are not ignored.
 Legitimate 83+BE ports (the rest are mirrored):

@@ Line 4: / Line 4: @@
 Please read our page on [[Contributing]] before editing these pages!
 '''A note about 83+BE ports:''' On the 83+BE, many of the ports have been mirrored to the 00h-07h region. If a port is mirrored, when it is being read, take the bitwise-AND with 07h to find the actual port being accessed. All writes to mirrored ports are ignored.
@@ Line 11: / Line 13: @@
 * '''Write values''' - 00h-07h, 10h-13h, 14h, and 16h are original ports
-'''Please note:''' The TI-84+CSE uses the same ASIC as the TI-84+/SE; it just has a different screen. Therefore, these pages also cover the TI-84+CSE.
+'''Please note:''' The TI-84+CSE uses the same ASIC as the TI-84+/SE; it just has a different screen and controller. Therefore, these pages also cover the TI-84+CSE.

← Older revision		Revision as of 00:58, 20 February 2013
Line 10:		Line 10:
	* '''Read values''' - 00h-07h and 10h-13h are original ports		* '''Read values''' - 00h-07h and 10h-13h are original ports
	* '''Write values''' - 00h-07h, 10h-13h, 14h, and 16h are original ports		* '''Write values''' - 00h-07h, 10h-13h, 14h, and 16h are original ports
		+
		+	'''Please note:''' The TI-84+CSE uses the same ASIC as the TI-84+/SE; it just has a different screen. Therefore, these pages also cover the TI-84+CSE.

@@ Line 1: / Line 1: @@
 [[Category:83Plus:Ports|Ports by Address/Number]]
-See also [[:Category:83Plus:Ports:By Name|list of ports by name]].
+See also [[:Category:83Plus:Ports:By Name|list of ports by name]] and [[83Plus:State_of_the_calculator_at_boot|State of the calculator at boot]].
 Please read our page on [[Contributing]] before editing these pages!

@@ Line 5: / Line 5: @@
-'''A note about 83+BE ports:''' On the 83+BE, many of the ports have been mirrored to the 00h-07h region. If a port is mirrored, when it is being read, take the bitwise-AND with 07h to find the actual port being accessed. All write to mirrored ports are ignored.
+'''A note about 83+BE ports:''' On the 83+BE, many of the ports have been mirrored to the 00h-07h region. If a port is mirrored, when it is being read, take the bitwise-AND with 07h to find the actual port being accessed. All writes to mirrored ports are ignored.
 Legitimate 83+BE ports (the rest are mirrored):
 * '''Read values''' - 00h-07h and 10h-13h are original ports
 * '''Write values''' - 00h-07h, 10h-13h, 14h, and 16h are original ports

@@ Line 4: / Line 4: @@
 Please read our page on [[Contributing]] before editing these pages!
-'''A note about 83+BE ports:''' On the 83+BE, many of the ports have been mirrored to the 00h-07h region  If a port is mirrored, take the bitwise-AND with 07h to find the actual port being accessed.
+'''A note about 83+BE ports:''' On the 83+BE, many of the ports have been mirrored to the 00h-07h region. If a port is mirrored, take the bitwise-AND with 07h to find the actual port being accessed.
 * '''Read values''' - all ports except 10h-13h have been mirrored
 * '''Write values''' - all ports except 10h-13h, 14h, and 16h have been mirrored

← Older revision		Revision as of 04:09, 28 October 2011
Line 4:		Line 4:
	Please read our page on [[Contributing]] before editing these pages!		Please read our page on [[Contributing]] before editing these pages!

−	'''A note about 83+BE ports:''' ~~Since~~ the 83+BE ~~ports only go up to 16h~~, ~~ports 18h - FFh are all just mirrors~~ of ports 00h-07h. ~~Essentially~~, the ~~current port~~ bitwise-~~ANDed~~ with 07h ~~will tell you~~ the port ~~that you are actually accessing~~.	+	'''A note about 83+BE ports:''' On the 83+BE, many of the ports have been mirrored to the region 00h-07h. If a port is mirrored, take the bitwise-AND with 07h to find the actual port being accessed.
		+	* '''Read values''' - all ports except 10h-13h have been mirrored
		+	* '''Write values''' - all ports except 10h-13h, 14h, and 16h have been mirrored

← Older revision		Revision as of 03:48, 28 October 2011
Line 3:		Line 3:

	Please read our page on [[Contributing]] before editing these pages!		Please read our page on [[Contributing]] before editing these pages!
		+
		+	'''A note about 83+BE ports:''' Since the 83+BE ports only go up to 16h, ports 18h - FFh are all just mirrors of ports 00h-07h. Essentially, the current port bitwise-ANDed with 07h will tell you the port that you are actually accessing.