ALFAT-OM-337 GHI Electronics, ALFAT-OM-337 Datasheet - Page 21

• Manufacturer Part Number: ALFAT-OM-337
• Description: Memory IC Development Tools ALFAT USB / SD to UART / SPI OEM BOARD
• Manufacturer: GHI Electronics

Specifications of ALFAT-OM-337

• Rohs: yes
• Product: SD OEM Board
• Tool Is For Evaluation Of: SD, SDHC, MMC Cards, USB drives
• Memory Type: Flash
• Operating Supply Voltage: 3.3 V
• Description/function: OEM board offers a seamless way to access files on SD & MMC cards and on USB memory drives
• Interface Type: I2C, SPI, UART, USB
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Part # Aliases: GHI-ALFAT-OM-337

GHI Electronics
Rev. 1.13
T - Initialize Real Time Clock
The user can put ALFAT in a certain mode using Z command.
Power mode number
Format:
Format
Example
Example2 Z
•
2...9
◦
◦
◦
Stop mode: With this mode the system will maintain its state but will stop
execution.
◦
◦
◦
0
1
Exiting Standby mode: ALFAT exits Standby Mode by resetting the processor
(Reset pin) or by a rising edge on WAKEUP pin. After waking up from standby
mode, the system is in reset. It is important for users to make sure that all the
files are closed before setting this mode.
Typical Power Consumption: 3.3μA T
Maximum Power Consumption: 12.4μA T
Exiting Stop Mode: ALFAT exits Stop Mode by a rising edge on WAKEUP pin.
After waking up from Stop Mode, program execution resumes from where it
stopped.
Typical Power Consumption: 0.5mA T
Maximum Power Consumption: 1.2mA T
Standby Mode.
Stop Mode.
Reserved
T
!00
T
!00
<SP>
<SP>
Z
!00
Z
The system will reset after waking
up.
!00
<LF>
<LF>
<SP>
<SP>0<LF>
<SP>
<LF>
<LF>
S
B
<LF>
<LF>
n
1
<LF>
<LF>
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Shared Mode. The RTC runs off the same
processor clock.
Backup Mode. The RTC clocks using the
external 32.768Khz crystal and runs VBAT
power(1.65V to 3.6 V) backup coin
battery. This ensures that the RTC keeps
clocking even if ALFAT main power is
down.
n : Power mode number
Put ALFAT in Standby mode.
After waking up from Standby mode,
program execution restarts in the same
way as after a Reset.
Put ALFAT in Stop mode.
The
wakes up by setting #WAKEUP pin low.
!00
A
A
= 25 °C.
= 25 °C.
A
A
will be returned after ALFAT
= 25 °C. 11mA T
= 25 °C. 20.5μA T
ALFAT SoC Processor
ALFAT Command Set
A
www.ghielectronics.com
= 85 °C.
A
= 85 °C.