GENERAL-PURPOSE EMBEDDED CONTROLLERS
Zilog
P R E L I M I N A R Y
Z80189/Z8L189 GENERAL -PURPOSE E MBEDDED CONTROLLERS
PRELIMINARY PRODUCT SPECIFICATION
Z...
Description
Zilog
P R E L I M I N A R Y
Z80189/Z8L189 GENERAL -PURPOSE E MBEDDED CONTROLLERS
PRELIMINARY PRODUCT SPECIFICATION
Z80189/Z8L189
GENERAL-PURPOSE EMBEDDED CONTROLLERS
FEATURES
Part Z80189 Z8L189 CPU S180* S180* UART 16550 16550 I/O 24 24 Speed (MHz) 33 20
s s s s
Com Port Decode PC DMA Mailbox Registers Host I/O Mailbox Programmable Fixed /ROMCS and /RAMCS Boundaries 100-Pin QFP and VQFP Packages 3.3 and 5.0-Volt Operating Ranges 0°C to +70°C Temperature Range
s
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
s s s
On-Chip Clock Oscillator/Generator
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16550 Compatible MIMIC Interface – 16 mA MIMIC Output Drive Capability
Notes: † Enhancements from the Discrete S180 device.
GENERAL DESCRIPTION
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 particular V.34 applications), fax, voice messaging, and other communications applications. T...
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