User's Manual
Table Of Contents
- 2035-UM1xx.book
- Table of Contents
- List of Figures
- List of Tables
- Section 1: Introduction
- Section 2: Hardware System Overview
- Section 3: BCM2035 Usage Models
- Section 4: Hardware Configuration
- Section 5: Software Configuration
- Introduction
- Hardware Power-Up Sequence
- Boot ROM Power-Up Sequence
- Firmware Power-Up Sequence
- BCM2035 Mini-Drivers
- Loading Mini-Drivers from USB
- Load Mini-Drivers From UART
- SCO Configuration
- Frequency Trimming
- UART Sleep Mode Operation
- Section 6: Configuration Data File System
- Section 7: Vendor-Specific HCI Command Reference
- Section 8: ASCII Hex File Download Protocol
- Section 9: ASCII HEX File Format
- Section 10: Configuration Data Download Protocol
- Section 11: Configuration Data Image Format
- Section 12: UART Start-up Sequence
- Section 13: USB Start-up Sequence
9/29/2004 OV4F2
C
O
N
F
I
D
E
N
T
I
A
L
F
O
R
W
I
S
T
R
O
N
C
O
R
P
O
R
A
T
I
O
N
User Manual BCM2035
04/23/03
Broadcom Corporation
Document 2035-UM100-R Load Mini-Drivers From UART Page 45
Figure 25
through Figure28onpage48 illustrate the startup, download and reset timing for the ROM and the
mini-drivers.
Figure 25: Power-On Clock Stable to Boot ROM (All Modes) Ready for Baud Rate Negotiation and Mini-
Driver Download
CLK
Stable
*CTS
(optional)
*UART RX
(optional)
0x55
*RTS
(optional)
UPRX
0x55
*UART
option
*UPTX
(optional)
*UART TX
(optional)
0x34 0x31
0x34 0x31
*UART
option
*UPTX
option
*UART
option
TASmax
TASTAmax
TARu
TASTAmin
T
r
t
s
a