ZLF645E0Q2064G Zilog, ZLF645E0Q2064G Datasheet - Page 111

• Manufacturer Part Number: ZLF645E0Q2064G
• Description: IC MCU 64K FLASH 1K RAM 20-QFN
• Manufacturer: Zilog
• Series: Crimzon™ ZLFr

Specifications of ZLF645E0Q2064G

• Core Processor: Z8 LXMC
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, WDT
• Number Of I /o: 16
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.9 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Oscillator Type: -
• Other names: 269-4723

PS026407-0408
CTR2 data bits [4:3]
Note:
Negative Edge
SCLK
Z8 LXMC Data Bus
Z8 LXMC Data Bus
Positive Edge
T16 TRANSMIT Mode
In NORMAL or PING-PONG mode, the output of T16 when not enabled depends on
CTR1, bit 0. If this bit is set to 0, T16_OUT is a 1; if set to 1, T16_OUT is 0. You can
force the output of T16 to either 0 or 1 whether it is enabled or not by programming CTR1
bits [3:2] to a 10 or 11.
When bit 4 of CTR3 is set, the T16 output does not update. However, time-out interrupts
(flags) are still updated. In addition, the T8 carrier is not disrupted by timing out of the
T16 timer.
When T16 is enabled, a value of (TC16H * 256) + TC16L is loaded, and T16_OUT is
switched to its initial value (CTR1, bit 0). When T16 counts down to 0, T16_OUT is
toggled (in NORMAL or PING-PONG mode), an interrupt (CTR2, bit 1) is generated (if
enabled), and a status bit (CTR2, bit 5) is set. See
Global interrupts override this function as described in the
If T16 is in SINGLE-PASS mode, it is stopped at this point (see
it is in MODULO-N mode, it is loaded with TC16H * 256 + TC16L, and the counting
continues (see
at any time. The new values take effect when they are loaded.
Select
Clock
TC16
Clock
Figure 37
HI16
Figure 35. 16-Bit Counter/Timer Circuits
Counter T16
on page 104). You can modify the values in TC16H and TC16L
(TC16)
16-Bit
LO16
TC16
Figure
CTR2 data bit 2
35.
ZLF645 Series Flash MCUs
Interrupts
Counter/Timer Functional Blocks
Figure 36
Product Specification
T16_OUT
CTR2 data bit 1
on page 121.
on page 104). If
IRQ3
103