ez80f91 ZiLOG Semiconductor, ez80f91 Datasheet - Page 133
ez80f91
Manufacturer Part Number
ez80f91
Description
Ez80 Acclaimplus!? Connectivity Assp Ez80f91 Assp
Manufacturer
ZiLOG Semiconductor
Datasheet
1.EZ80F91.pdf
(387 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ez80f917050SBCG
Manufacturer:
Zilog
Quantity:
135
Company:
Part Number:
ez80f91AZ050SG
Manufacturer:
Zilog
Quantity:
158
Part Number:
ez80f91NA050SG
Manufacturer:
ZILOG
Quantity:
20 000
- Current page: 133 of 387
- Download datasheet (5Mb)
eZ80F91 ASSP
Product Specification
125
And when the end-of-count value (
) is reached, the EOC bit is set to 1 and an inter-
0000h
rupt service request signal is passed to the CPU. The interrupt service request signal is
deactivated by a CPU read of the timer interrupt identification register, TMRx_IIR.
All bits in that register are reset by the Read.
The response of the CPU to this interrupt service request is a function of the CPU’s inter-
®
rupt enable flag, IEF1. For more information about this flag, refer to the eZ80
CPU User
Manual (UM0077) available on www.zilog.com.
Timer Input Source Selection
Timers 0–3 features programmable input source selection. By default, the input is taken
from the eZ80F91’s system clock. The timers also use the Real-Time Clock source (50,
60, or 32768 Hz) as their clock sources. The input source for these timers is set using the
timer control register. (TMRx_CTL[CLK_SEL])
Timer Output
The timer count is directed to the GPIO output pins, if required. To enable the Timer
Output feature, the GPIO port pin must be configured as an output and for alternate func-
tions. The GPIO output pin toggles each time the timer reaches its end-of-count value.
In CONTINUOUS mode operation, enabling the Timer Output feature results in a Timer
Output signal period which is twice the timer time-out period. Examples of Timer Output
operation are illustrated in
Figure 29
and
Table 52
on page 126. The initial value for the
timer output is zero.
Logic to support timer output exists in all timers; but for the eZ80F91 device, only Timer
0 and 2 route the actual timer output to the pins. Because Timer 3 uses the T
pins for
OUT
PWMxN signals, the timer outputs are not available when using complementary PWM
outputs. See
Table 52
on page 126 for details.
PS027001-0707
Programmable Reload Timers
Related parts for ez80f91
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Ez80f91 Mini Enet Module
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
Development Boards & Kits - Other Processors ZiLOG TCP/IP Software Suite (ZTP Rev 1.4) - Object Code (Free download on www.zilog.com)
Manufacturer:
ZiLOG
Part Number:
Description:
Z90233, Z90234, And Z90231 Ezvision 200 Television Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
Digital Television Controllers
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
Television Controllers
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
40-pin Low-cost Digital Television Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
40-pin Low-cost Digital Television Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
Digital Television Controller In-circuit Emulator Ice Device
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
Digital Television Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
Digital Television Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
High Performance Microcontrollers
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
Cmos Usc Universal Serial Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
Iusc Integrated Universal Serial Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
16-bit Processor
Manufacturer:
ZiLOG Semiconductor
Datasheet:
Part Number:
Description:
Pcmcia Interface Solution
Manufacturer:
ZiLOG Semiconductor
Datasheet: