Datasheet

06 February 2012 Broadcom Europe Ltd. 406 Science Park Milton Road Cambridge CB4 0WW Page 103
© 2012 Broadcom Corporation. All rights reserved
GPIO41 Low PW M1 SD5 <reserved> <reserved> SPI2_MOSI RXD1
GPIO42 Low GPCLK1 SD6 <reserved> <reserved> SPI2_SCLK RTS1
GPIO43 Low GPCLK2 SD7 <reserved> <reserved> SPI2_CE0_N CTS1
GPIO44 - GPCLK1 SDA0 SDA1 <reserved> SPI2_CE1_N
GPIO45 - PWM1 SCL0 SCL1 <reserved> SPI2_CE2_N
GPIO46 High <Internal>
GPIO47 High <Internal>
GPIO48 High <Internal>
GPIO49 High <Internal>
GPIO50 High <Internal>
GPIO51 High <Internal>
GPIO52 High <Internal>
GPIO53 High <Internal>
Table 6-31 GPIO Pins Alternative Function Assignment
Entries which are white should not be used. These may have unexpected results as some of these
have special functions used in test mode. e.g. they may drive the output with high frequency signals.
Special function legend:
Name Function See section
SDA0 BSC
6
master 0 data line BSC
SCL0 BSC master 0 clock line BSC
SDA1 BSC master 1 data line BSC
SCL1 BSC master 1 clock line BSC
GPCLK0 General purpose Clock 0 <TBD>
GPCLK1 General purpose Clock 1 <TBD>
GPCLK2 General purpose Clock 2 <TBD>
SPI0_CE1_N SPI0 Chip select 1 SPI
SPI0_CE0_N SPI0 Chip select 0 SPI
SPI0_MISO SPI0 MISO SPI
SPI0_MOSI SPI0 MOSI SPI
SPI0_SCLK SPI0 Serial clock SPI
PWMx Pulse Width Modulator 0..1 Pulse Width Modulator
TXD0 UART 0 Transmit Data UART
RXD0 UART 0 Receive Data UART
CTS0 UART 0 Clear To Send UART
RTS0 UART 0 Request To Send UART
PCM_CLK PCM clock PCM Audio
PCM_FS PCM Frame Sync PCM Audio
PCM_DIN PCM Data in PCM Audio
PCM_DOUT PCM data out PCM Audio
SAx Secondary mem Address bus Secondary Memory Interface
SOE_N / SE Secondary mem. Controls Secondary Memory Interface
SWE_N / SRW_N Secondary mem. Controls Secondary Memory Interface
SDx Secondary mem. data bus Secondary Memory Interface
BSCSL SDA / MOSI BSC slave Data, SPI salve MOSI BSC ISP slave
BSCSL SCL / SCLK BSC slave Clock, SPI slave clock BSC ISP slave
BSCSL - / MISO BSC <not used>,SPI MISO BSC ISP slave
BSCSL - / CE_N BSC <not used>, SPI CSn BSC ISP slave
6
The Broadcom Serial Control bus is a proprietary bus compliant with the Philips
®
I2C bus/interface