參數(shù)資料
型號： Z8018933FSC
廠商： ZILOG INC
元件分類： 微控制器/微處理器
英文描述： GENERAL-PURPOSE EMBEDDED CONTROLLERS
中文描述： 8-BIT, 33 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁數(shù)： 1/107頁
文件大?。?/td> 559K
代理商： Z8018933FSC
1
P R E L I M I N A R Y
Z80189/Z8L189
G
ENERAL
-P
URPOSE
E
MBEDDED
C
ONTROLLERS
DS971890301
Zilog
P
RELIMINARY
P
RODUCT
S
PECIFICATION
FEATURES
I
Com Port Decode
I
PC DMA Mailbox Registers
I
Host I/O Mailbox
I
Programmable Fixed /ROMCS and
/RAMCS Boundaries
I
100-Pin QFP and VQFP Packages
I
3.3 and 5.0-Volt Operating Ranges
I
0
°
C to +70
°
C Temperature Range
Notes:
Enhancements from the Discrete S180 device.
GENERAL DESCRIPTION
Part
Z80189
Z8L189
CPU
S180*
S180*
UART
16550
16550
I/O
24
24
Speed (MHz)
33
20
I
Fully Static Z180
MPU Core*
– On-Chip 1 MByte MMU
– Two Enhanced UART Channels (up to 512 Kbps)
– Two Chain-Linked DMA Channels
– x 2 Clock Multiplier
– Low-Power Consumption Modes
– Two 16-Bit Timer/Counters
– Clocked Serial I/O
– On-Chip Wait State Generator (WSG)
– On-Chip Interrupt Controller
–
On-Chip Clock Oscillator/Generator
I
16550 Compatible MIMIC Interface
– 16 mA MIMIC Output Drive Capability
The Z80189/Z8L189 are cost-effective modem controllers
that address a new generation of data pumps having the
HDLC formatting feature. Data pumps of these types do
not require an HDLC interface; therefore, the Z80189 does
not need the ESCC
. The addition of the PC DMA Mailbox
Registers allow DMA data transfer between the PC memory
and the modem speaker/microphone CODEC. The Z80189
is a smart peripheral controller chip for modem (in particu-
lar V.34 applications), fax, voice messaging, and other
communications applications.
The Z80189/Z8L189 consists of an enhanced Z8S180
microprocessor, a 16550 MIMIC with increased MIMIC
drive capability for direct connection to the IBM PC, XT, AT
bus, and 24 bits of parallel I/O. Current PC modem soft-
ware compatibility can be maintained with the Z80189's
ability to mimic the 16550 UART chip. The Z80180 core is
the intelligent controller between the data pump and
16550 MIMIC interface when used in internal applications.
This intelligent controller performs the data compression
and error correction on outgoing and incoming data.
Z80189/Z8L189
G
ENERAL
-P
URPOSE
E
MBEDDED
C
ONTROLLERS
The integration of COM Port Decode circuitry to the Z80189
allows the MIMIC to be selected for a specific COM Port
Address (PC COM Port Address 1-4). COM Port Decode
circuitry is simplified by allowing the user to select the
MIMIC COM Port addresses through software, in addition
to eliminating the need for external circuitry required for
COM Port Decode logic.
The PC DMA and I/O Mailbox Interface can be used to
provide communication paths between the PC Host and
the Z80189. These new communication paths can be used
for voice, DTAD, or jumperless COM Port selection.
Notes:
All Signals with a preceding front slash, "/", are active Low, e.g.:
B//W (WORD is active Low); /B/W (BYTE is active Low, only).
Power connections follow conventional descriptions below:
Connection
Circuit
Device
Power
Ground
V
GND
V
DD
V
SS
相關PDF資料
PDF描述
Z8L189 GENERAL-PURPOSE EMBEDDED CONTROLLERS
Z8L18920ASC GENERAL-PURPOSE EMBEDDED CONTROLLERS
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Z80189 GENERAL-PURPOSE EMBEDDED CONTROLLERS
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