Sony Ericsson Mobile Communications Inc. TR-505-A2 Manuale Utente
DM15/25 Integrator’s Manual
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6.2.1
VPPFLASH/DCD
This signal, located on pin 23 in the system connector, can be used by the application to enable flashing of the phone module.
To enter flash-mode, the application shall set VPPFLASH_EN active high, then enable the MODULE_PWR_EN_B pin. The
circuitry above ensures that a high enough signal is input on VPPFLASH without overloading the DCD input buffer.
To enter flash-mode, the application shall set VPPFLASH_EN active high, then enable the MODULE_PWR_EN_B pin. The
circuitry above ensures that a high enough signal is input on VPPFLASH without overloading the DCD input buffer.
6.3
PCM
The PCM group contains four signals, three input signals to the application, and one output signal from the application.
VREF
19, PCMDLD
18, PCMSYNC
17, PCMCLK
18, PCMSYNC
17, PCMCLK
1 - 100k
VCC
PCM_IN
PCM_SYNC
PCM_CLK
VREF
20, PCMULD
1 - 100k
VREF
PCM_OUT
Phone Module
Application