ez80190 ZiLOG Semiconductor, ez80190 Datasheet - Page 34

• Manufacturer Part Number: ez80190
• Description: Ez80190 Microprocessor
• Manufacturer: ZiLOG Semiconductor

PS006613-0306
Pin # Symbol
88
89
90
91
92
93
94
BUSACK Bus
PA0
PA1
PA2
PA3
PA4
PA5
Table 1. 100-Pin LQFP Pin Identification of the eZ80190 Device (Continued)
Function
Acknowledge
GPIO Port A
GPIO Port A
GPIO Port A
GPIO Port A
GPIO Port A
GPIO Port A
Signal Direction
Output, Active Low The eZ80190 device responds to a Low on the
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
PRELIMINARY
Description
BUSREQ, by tristating the address, data, and
control signals, and by driving the BUSACK line
Low. During bus acknowledge cycles A23:0,
IORQ, and MREQ are inputs.
The PA0 pin can be used for general-purpose I/O.
It can be individually programmed as an input or
an output and can also be used individually as an
interrupt input. Each Port A pin, when
programmed as an output, can be selected to be
an open-drain or open-source output.
The PA1 pin can be used for general-purpose I/O.
It can be individually programmed as an input or
an output and can also be used individually as an
interrupt input. Each Port A pin, when
programmed as an output, can be selected to be
an open-drain or open-source output.
The PA2 pin can be used for general-purpose I/O.
It can be individually programmed as an input or
an output and can also be used individually as an
interrupt input. Each Port A pin, when
programmed as an output, can be selected to be
an open-drain or open-source output.
The PA3 pin can be used for general-purpose I/O.
It can be individually programmed as an input or
an output and can also be used individually as an
interrupt input. Each Port A pin, when
programmed as an output, can be selected to be
an open-drain or open-source output.
The PA4 pin can be used for general-purpose I/O.
It can be individually programmed as an input or
an output and can also be used individually as an
interrupt input. Each Port A pin, when
programmed as an output, can be selected to be
an open-drain or open-source output.
The PA5 pin can be used for general-purpose I/O.
It can be individually programmed as an input or
an output and can also be used individually as an
interrupt input. Each Port A pin, when
programmed as an output, can be selected to be
an open-drain or open-source output.
Architectural Overview
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