User Manual

1-Aug-2012
19
2.4.4 OLED
An Inteltronic/Wisechip UG-2832HSWEG04 OLED Display is used on the ZedBoard. This
provides a 128x32 pixel, passive-matrix, monochrome display. The display size is 30mm x
11.5mm x 1.45mm.
Table 11 - OLED Connections
Pin Number
Symbol
EPP Pin
Function
Power Supply
7
VDD
U12
Power Supply for Logic
6
VSS
N/C
Ground of OEL System
15
VCC
N/C
Power Supply for OEL Panel
Driver
13
IREF
N/C
Current Reference for Brightness Adjustment
14
VCOMH
N/C
Voltage Output High Level for COM Signal
DC/DC Converter
5
VBAT
U11
Power Supply for DC/DC Converter Circuit
3 / 4
1 / 2
C1P / C1N
C2P / C2N
N/C
Positive Terminal of the Flying Inverting Capacitor
Negative Terminal of the Flying Boost Capacitor
Interface
9
RES#
U9
Power Reset for Controller and Driver
8
CS#
N/C
Chip Select – Pulled Down on Board
10
D/C#
U10
Data/Command Control
11
SCLK
AB12
Serial Clock Input Signal
12
SDIN
AA12
Serial Data Input Signal
2.5 Clock sources
The EPP’s PS subsystem uses a dedicated 33.3333 MHz clock source, IC18, Fox 767-
33.333333-12, with series termination. The PS infrastructure can generate up to four PLL-based
clocks for the PL system. An on-board 100 MHz oscillator, IC17, Fox 767-100-136, supplies the
PL subsystem clock input on bank 13, pin Y9.
2.6 Reset Sources
2.6.1 Power‐on Reset (PS_POR_B)
The Zynq PS supports external power-on reset signals. The power-on reset is the master reset of
the entire chip. This signal resets every register in the device capable of being reset. ZedBoard
drives this signal from a comparator that holds the system in reset until all power supplies are
valid. Several other IC’s on ZedBoard are reset by this signal as well.