ZLF645E0Q2064G Zilog, ZLF645E0Q2064G Datasheet - Page 149

• 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

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Table 70. Stop Mode Recovery Register (SMR)
PS026407-0408
Bit
Field
Reset
R/W
Address
Bit Position
[7]
[6]
[5]
[4:2]
Stop
Flag
R
7
0
Value Description
000
001
010
100
101
011
110
111
0
1
0
1
0
1
Recovery Level
Stop Mode
Stop Flag —Indicates whether last startup was power-on reset or Stop Mode
Recovery. A write to this bit has no effect.
Power-on reset.
Stop Mode Recovery.
Stop Mode Recovery Level —Selects whether an SMR[4:2]-selected SMR is
initiated by a Low or High level at the XOR-gate input
(see
Low.
High.
Stop Delay —Controls the reset delay after recovery. Must be 1 if using a crystal
or resonator clock source.
Off.
On.
Stop Mode Recovery Source —Specifies a Stop Mode Recovery wake-up
source at the XOR gate input (see
changed by a Stop Mode Recovery. The following equations ignore any Port pin
configured as output or selected in SMR1 or SMR3.
No SMR register source selected.
Reserved.
P31.
P32.
P33.
P27.
Port 2 NOR 0–3.
Port 2 NOR 0–7.
W
6
0
Figure 44 on page
Delay
Stop
W
5
1
Bank F: 0Bh; Linear: F0Bh
140).
Stop Mode Recovery
W
4
0
Source
W
3
0
Figure 44 on page
W
2
0
ZLF645 Series Flash MCUs
Reset/Stop Mode Recovery Status
Reset Time
Reduction
Product Specification
W
1
0
140). This value is not
Divide-by-16
SCLK/TCLK
W
0
0
141