EZ80F91NA050SC Zilog, EZ80F91NA050SC Datasheet - Page 130

• Manufacturer Part Number: EZ80F91NA050SC
• Description: IC ACCLAIM MCU 256KB 144-BGA
• Manufacturer: Zilog
• Series: eZ80® Acclaim!®r

Specifications of EZ80F91NA050SC

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 50MHz
• Connectivity: Ethernet, I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 144-LBGA
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 50 MHz
• Data Ram Size: 16 KB
• Number Of Programmable I/os: 32
• Number Of Timers: 16 Bit
• Operating Supply Voltage: 3 V to 3.6 V
• Mounting Style: SMD/SMT
• Height: 1.5 mm
• Length: 13 mm
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Width: 13 mm
• For Use With: 269-4712 - KIT DEV ENCORE 32 SERIES269-4671 - BOARD ZDOTS SBC Z80ACCLAIM PLUS269-4561 - KIT DEV FOR EZ80F91 W/C-COMPILER269-4560 - KIT DEV FOR EZ80F91 W/C-COMPILER
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No RoHS Version Available
• Other names: 269-3251

Programmable Reload Timers
PS019215-0910
The eZ80F91 device features four programmable reload timers. The core of each timer is a
16-bit downcounter. In addition, each timer features a selectable clock source, adjustable
prescaling and operates in either SINGLE PASS or CONTINUOUS mode.
In addition to the basic timer functionality, some of the timers support specialty modes
that performs event counting, input capture, output compare, and Pulse-Width Modulation
(PWM) generation functions. PWM mode supports four individually-configurable outputs
and a power trip function.
Each of the four timers available on the eZ80F91 device are controlled individually. They
do not share the same counters, reload registers, control registers, or interrupt signals. A
simplified block diagram of a programmable reload timer is displayed in
Each timer features its own interrupt which is triggered either by the timer reaching zero
or after a successful comparison occurs. As with the other eZ80F91 interrupts, the priority
is fully programmable.
SCLK
RTC CLK
R
E
O
A
D
L
ECx
Figure 26. Programmable Reload Timer Block Diagram
DIV
EOC
Down Counter
M
U
X
IRQ Control
CONTROL
IC
16-Bit
IRQ
OC
PWR Trip
PWM
16
Input Capture
Registers
Output Compare
Comparator
Registers
Control
PWM
ICx
Programmable Reload Timers
16
Product Specification
PWM
OCx
Figure
eZ80F91 MCU
26.
121