ez80f91 ZiLOG Semiconductor, ez80f91 Datasheet - Page 11

• Manufacturer Part Number: ez80f91
• Description: Ez80 Acclaimplus!? Connectivity Assp Ez80f91 Assp
• Manufacturer: ZiLOG Semiconductor

PS027001-0707
RTC_X
RTC_V
RTC_X
DSR0/1
DCD0/1
DTR0/1
CTS0/1
RTS0/1
RxD0/1
TxD0/1
MISO
MOSI
RI0/1
SDA
SCK
SCL
OUT
WP
SS
DD
IN
Encoder/
Decoder
IrDA
Asynchronous
Transmitter
Real-Time
Clock and
Oscillator
Universal
Receiver/
Interface
Interface
32 KHz
Parallel
UART
Serial
Serial
SPI
I C
(2)
2
8-Bit General-
Figure 1. eZ80F91 Block Diagram
Purpose
I/O Port
GPIO
(4)
MII Interface
Signals (18)
Memory
SRAM
Ethernet
256KB
8KB
Flash
MAC
System Clock
Generator
Oscillator
PLL, and
Crystal
Programmable
Timer/Counter
Controller
JTAG/ZDI
Controller
Interface
Interrupt
Arbiter
Debug
eZ80
Reload
CPU
Bus
(4)
Interrupt
Vector
(8:0)
Chip Select
Wait State
Generator
BUSACK
BUSREQ
INSTRD
IORQ
MREQ
RD
WR
NMI
HALT_SLP
JTAG/ZDI Signals (5)
Watch-Dog
POR/VBO
and
SRAM
Timer
WDT
Product Specification
8KB
Architectural Overview
eZ80F91 ASSP
WAIT
CS0
CS1
CS2
CS3
DATA[7:0]
ADDR[23:0]
Internal
Osc.
RESET
RC
3