MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 461

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

RM0008
Control unit
The control unit contains the power management functions and the clock divider for the
memory card clock.
There are three power phases:
●
●
●
Figure 184. Control unit
The control unit is illustrated in
a clock management subunit.
The power management subunit disables the card bus output signals during the power-off
and power-up phases.
The clock management subunit generates and controls the SDIO_CK signal. The SDIO_CK
output can use either the clock divide or the clock bypass mode. The clock output is inactive:
●
●
●
Command path
The command path unit sends commands to and receives responses from the cards.
power-off
power-up
power-on
after reset
during the power-off or power-up phases
if the power saving mode is enabled and the card bus is in the Idle state (eight clock
periods after both the command and data path subunits enter the Idle phase)
Adapter
registers
Doc ID 13902 Rev 9
Figure
Control unit
184. It consists of a power management subunit and
Power management
To command and data path
Secure digital input/output interface (SDIO)
management
Clock
SDIO_CK
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