BC41B143A-DS-001PE Datasheet, PDF (86/102 Pages) List of Unclassifed Manufacturers – BlueCpre 4-ROM Single Chip Bluetooth v2.0 System with EDR

Device Terminal Descriptions
10.11.1 Pin States on Reset
Table 10.13 shows the pin states of BlueCore4-ROM on reset.
Pin Name
PIO[11:0]
PCM_OUT
PCM_IN
PCM_SYNC
PCM_CLK
UART_TX
UART_RX
UART_RTS
UART_CTS
USB_DP
USB_DN
SPI_CSB
SPI_CLK
SPI_MOSI
SPI_MISO
AIO[2:0]
RESET
RESETB
TEST_EN
AUX_DAC
TX_A
TX_B
RF_IN
XTAL_IN
XTAL_OUT
State: BlueCore4-ROM
Input with weak pull-down
Tri-stated with weak pull-down
Input with weak pull-down
Input with weak pull-down
Input with weak pull-down
Output tri-stated with weak pull-up
Input with weak pull-down
Output tri-stated with weak pull-up
Input with weak pull-down
Input with weak pull-down
Input with weak pull-down
Input with weak pull-up
Input with weak pull-down
Input with weak pull-down
Output tri-stated with weak pull-down
Output, driving low
Input with weak pull-down
Input with weak pull-up
Input with strong pull-down
High impedance
High impedance
High impedance
High impedance
High impedance, 250k to XTAL_OUT
High impedance, 250k to XTAL_IN
Table 10.13: Pin States of BlueCore4-ROM on Reset
10.11.2 Status after Reset
The chip status after a reset is as follows:
! Warm Reset: Baud rate and RAM data remain available
! Cold Reset⁽¹⁾: Baud rate and RAM data not available
Note:
(1) _{Cold Reset constitutes one of the following:}
! Power cycle
! System reset (firmware fault code)
! Reset signal, see Section 10.11.
BC41B143A-ds-001Pe
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