eZ80L92 MCU
Product Specification
18
Table 1. 100-Pin LQFP Pin Identification of eZ80L92 MCU (Continued)
Pin No Symbol
Function
Signal Direction
Description
84
85
V
X
Ground
Ground.
SS
IN
System Clock Input
Oscillator Input
This pin is the input to the onboard crystal
oscillator for the primary system clock.
If an external oscillator is used, its clock
output should be connected to this pin.
When a crystal is used, it should be
connected between X and X
.
IN
OUT
86
X
V
System Clock Output
Oscillator
Output
This pin is the output of the onboard
crystal oscillator. When used, a crystal
OUT
DD
should be connected between X and
IN
X
.
OUT
87
88
Power Supply
Power Supply.
PB0
GPIO Port B
Bidirectional
This pin can be used for GPIO. It can be
individually programmed as input or
output and can also be used individually
as an interrupt input. Each Port B pin,
when programmed as output, can be
selected to be an open-drain or open-
source output.
T0_IN
PB1
Timer 0 In
Input
Alternate clock source for Programmable
Reload Timers 0 and 2. This signal is
multiplexed with PB0.
89
GPIO Port B
Bidirectional
This pin can be used for GPIO. It can be
individually programmed as input or
output and can also be used individually
as an interrupt input. Each Port B pin,
when programmed as output, can be
selected to be an open-drain or open-
source output.
T1_IN
Timer 1 In
Input
Alternate clock source for Programmable
Reload Timers 1 and 3. This signal is
multiplexed with PB1.
PS013014-0107
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