User`s manual

Configuration and Operation
Configuring Board Components
User’s Manual M9328MX1ADS - Rev 2
MOTOROLA Configuration and Operation 11
* Setting the associated bit high (power on reset default) disables the interface.
Setting the bit low will enable the interface.
** Warning: Do not enable UART2 and IRDA at the same time. Neither
circuit will function properly and circuit damage could result.
Figure 2-1 shows a possible configuration: the UART1 transceiver and the
IrDA module enabled; the UART2 transceiver and buzzer disabled..
Figure 2-1 Switch S1
2.2.2 Mode Switch (S22)
Switch S22 configures boot mode, configures endian state, and enables test
mode. These switches only take effect on power up or after a reset is applied.
Table 2-3 lists settings for the boot-mode subswitches, S22-1 through S22-4.
Table 2-4 lists the settings for subswitches S22-5 and S22-6.
.
5
ON
4
8
BUZZER
IrDA
UART2
UART1
S1
1
2
36
7
PEN_CS
PEN_IRQ
LCD
Table 2-3 Boot Mode Subswitch Settings
Boot Mode, Device S22-1 S22-2 S22-3 S22-4
Internal bootstrap ROM ON ON ON ON
CS0, 32-bit ON OFF OFF ON
CS0, 16-bit, D[15—0] OFF ON OFF ON
CS0, 16-bit, D[31—16] ON ON OFF ON
CS0, 8-bit, D[7—0] OFF OFF ON ON
CS3, 32-bit SyncFlash ON OFF ON ON
CS3, 16-bit SyncFlash, D[15—0] OFF ON ON ON