ZLF645S2864GP0001 Maxim Integrated, ZLF645S2864GP0001 Datasheet - Page 154

• Manufacturer Part Number: ZLF645S2864GP0001
• Description: 8-bit Microcontrollers - MCU Crimzon Flash Infrared MCU
• Manufacturer: Maxim Integrated

Specifications of ZLF645S2864GP0001

• Core: Z8
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 1 KB
• Operating Supply Voltage: 2 V to 3.6 V
• Interface Type: UART
• Number Of Programmable I/os: 5
• Number Of Timers: 2 x 8 bit, 1 x 16 bit
• Processor Series: ZLF645
• Program Memory Type: Flash

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Table 69. Stop Mode Recovery Register (SMR)
19-4572; Rev 0; 4/09
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 145).
Delay
Stop
W
5
1
Bank F: 0Bh; Linear: F0Bh
Stop Mode Recovery
W
4
0
Source
W
3
0
Figure 44
W
2
0
on page 145). This value is not
ZLF645 Series Flash MCUs
Reset/Stop Mode Recovery Status
Reset Time
Reduction
Product Specification
W
1
0
Divide-by-16
SCLK/TCLK
W
0
0
146