EZ80F91AZA50EG Zilog, EZ80F91AZA50EG Datasheet - Page 131

• Manufacturer Part Number: EZ80F91AZA50EG
• Description: IC ACCLAIM MCU 256KB 144LQFP
• Manufacturer: Zilog
• Series: eZ80® AcclaimPlus!™r

Specifications of EZ80F91AZA50EG

• 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: -40°C ~ 105°C
• Package / Case: 144-LQFP
• Processor Series: EZ80F91x
• Core: eZ80
• Data Bus Width: 8 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, IrDA, SPI
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: eZ80F910300ZCOG
• Minimum Operating Temperature: - 40 C
• 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: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: 269-4563

PS027001-0707
TMR3_CTL Write
Interrupt Request
(Timer Enable)
System Clock
Clock Enable
T3 Count
Minimum time-out duration is four times longer than the input clock period and is gener-
ated by setting the clock divider ratio to 1:4 and the reload value to
time-out duration is 2
erated by setting the clock divider ratio to 1:256 and the reload value to
SINGLE PASS Mode
In SINGLE PASS mode when the end-of-count value (
the timer is disabled, and TMRx_CTL[TIM_EN] bit resets to 0. To re-enable the timer, the
CPU must set the TIM_EN bit to 1. An example of a PRT operating in SINGLE PASS
mode is illustrated in
Table 50. Example: PRT SINGLE PASS Mode Parameters
CONTINUOUS Mode
In CONTINUOUS mode, when the end-of-count value,
automatically reloads the 16-bit start value from the Timer Reload registers,
Parameter
Timer Enable
Reload
Prescaler Divider = 4
SINGLE PASS Mode
End of Count Interrupt Enable
Timer Reload Value
Figure 27. Example: PRT SINGLE PASS Mode Operation
0
24
Figure
(16,777,216) times longer than the input clock period and is gen-
4
27. Timer register information is indicated in
Control Register(s)
TMR
TMR
TMR
TMR
TMR
{TMR
3
x
x
x
x
x
x
_CTL[TIM_EN]
_CTL[RLD]
_CTL[CLK_DIV]
_CTL[TIM_CONT]
_IER[IRQ_EOC_EN]
_RR_H, TMRx_RR_L}
2
0000h
0000h
1
) is reached; counting halts,
Programmable Reload Timers
, is reached, the timer
Product Specification
0001h
Value
1
1
00b
0
1
0004h
0000h
eZ80F91 ASSP
. Maximum
Table
0
.
50.
123