Z8S180 Zilog., Z8S180 Datasheet - Page 160
Z8S180
Manufacturer Part Number
Z8S180
Description
ENHANCED Z180 MICROPROCESSOR
Manufacturer
Zilog.
Datasheet
1.Z8S180.pdf
(326 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
Z8S18010FSCZ180
Manufacturer:
ZILOG
Quantity:
748
Company:
Part Number:
Z8S18010FSG
Manufacturer:
Zilog
Quantity:
426
Company:
Part Number:
Z8S18010PSG
Manufacturer:
Zilog
Quantity:
48
Company:
Part Number:
Z8S18010VEC
Manufacturer:
ZILOG
Quantity:
12 388
Company:
Part Number:
Z8S18010VSC
Manufacturer:
ZILOG
Quantity:
250
- Current page: 160 of 326
- Download datasheet (2Mb)
2^ss depends on the three least significant bits of the CNTLB register, as
described in Table 21.
Table 21. 2^ss Values
The ASCIs require a 50% duty cycle when CKA is used as an input.
Minimum High and Low times on CKA0 are typical of most CMOS
devices.
RDRF is set, and if enabled, an Rx Interrupt or DMA REquest is
generated when the receiver transfers a character from the Rx Shift
Register to the RX FIFO. The FIFO provides a margin against overruns.
When the is more than one character in the FIFO, and software or a DMA
channel reads a character, RDRF either remains set or is cleared and then
immediately set again. For example, if a receive interrupt service routine
does not real all the characters in the RxFIFO, RDRF and the interrupt
request remain asserted.
The Rx DMA request is disabled when any of the error flags PE or FE or
OVRN are set, so that software can identify with which character the
problem is associated.
If Bit 7, RDRF Interrupt Inhibit, is set to 1, the ASCI does not request a
Receive interrupt when its RDRF flag is 1. Set this bit when programming
a DMA channel to handle the receive data from an ASCI. The other
ss2
0
0
0
0
1
1
1
1
ss1
0
0
1
1
0
0
1
1
ss0
0
1
0
1
0
1
0
1
2^ss
1
2
4
8
16
32
64
External Clock from CKA0
M PU Us e r M anual
UM005001-ZMP0400
Z 8018x Fam il y
145
Related parts for Z8S180
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
40-Pin Low-Cost Digital Television Controller
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
40-PIN LOW-COST DIGITAL TELEVISION CONTROLLER
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
TELEVISION CONTROLLERS
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
Z8 Digital Television Controllers
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
DIGITAL TELEVISION CONTROLLER IN-CIRCUIT EMULATOR (ICE) DEVICE
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
IPC INTELLIGENT PERIPHERAL CONTROLLER
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
NMOS/CMOS Z80 PIO PARALLEL INPUT/OUTPUT
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
NMOS/CMOS Z80 CTC COUNTER/TIMER CIRCUIT
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
SERIAL INPUT/OUTPUT CONTROLLER
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
DIGITAL TELEVISION CONTROLLER
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
Digital Television Controller
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
DIGITAL TELEVISION CONTROLLER
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
DIGITAL TELEVISION CONTROLLER
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
16-BIT DIGITAL SIGNAL PROCESSORS
Manufacturer:
Zilog.
Datasheet:
Part Number:
Description:
16-Bit Digital Signal Processors
Manufacturer:
Zilog.
Datasheet: