User`s manual

47
Four Wire Touch Screen Input
Table 37: Four-Wire Touch Screen Resource Assignment
Signal Source I/O Port Notes
GPIO3 HD64465 PE2 Output
GPIO2 HD64465 PE1 Output
GPIO1 HD64465 PE0 Output
TSPX HD64465 TSPX Analog Input
TSMX HD64465 TSMX Analog Input
TSPY HD64465 TSPY Analog Input
TSMY HD64465 TSMY Analog Input
Miscellaneous Resource Assignments
Table 38: Miscellaneous Resource Assignments
Signal Source I/O Port Notes
EXP_INT 7709A/7729 PTC7/PINT7 Daughterboard,
optional interrupt
LED0 7709A/7729 PTE7 Output; Rev 4 only
PCMCIAEN 7709A/7729 PTH6 Input; Rev 4 or less
bd. only
RSTO# 7709A/7729 PTH5/ADTRG# Input
ASEBRKAK# 7709A/7729 ASEBRKAK# Input – JTAG
function
ASEMDO 7709A/7729 ASEMDO/PTG6 Input – JTAG
function
FLWREN 7709A/7729 PTD2/RESOUT# Output: “1” enable
writing of the FLASH
PRST# 7709A/7729 WAKEUP#/PTD3 Software Reset:
Normally float. When
driven “0” will force
system reset
TDO 7709A/7729 TDO/PTE0 JTAG support
function; output
AUDSYNC# 7709A/7729 PTE7 AUD Output; Rev 5
Bd. or greater only
AUDCK 7709A/7729 PTH6 AUD Output; Rev 5
Bd. or greater only
AUDATA0 7709A/7729 PTG0 AUD Output; Rev 5
Bd. or greater only
AUDATA1 7709A/7729 PTG1 AUD Output; Rev 5
Bd. or greater only
AUDATA2 7709A/7729 PTG2 AUD Output; Rev 5
Bd. or greater only
AUDATA3 7709A/7729 PTG3 AUD Output; Rev 5
Bd. or greater only