RS_Telecom IP
RM0082
784/844
Doc ID 018672 Rev 1
34.6 Description
of
registers
This section describes the registers of telecom block.
34.6.1 Boot
register
Boot register is dedicated to the boot ROM software. The bits [15:00] are a Magic number
0x1C8C”. Bits 27 to 20 (H7 to H0) informs the boot software about the hardware. Specially,
BOOTP and TFTP can be run using a dedicated MAC address and a dedicated file name.
Bits 19 to 16 (B3 to B0) informs the hardware about the peripheral used for booting: USB,
Ethernet or memories.
34.6.2 TDM_conf
register
This register is used by the CLK_GEN module. It allows configuration of the internal clock
that will be used as reference for the TDM.
0x50
RW
I2S_CLK_CONF
0x54
RW
Interrupt mask
0x58
RO
Interrupt status
0x6C
RW
I2S_CONF2
Table 702.
Telecom registers (continued)
Offset
Type
Name
Table 703.
Boot register (Offset 0x00)
Bits
Name
Comments
[31:28]
Reserved
[27:20]
H
Height bits from setting pins H7 to H0. This represents a number
between 0 and 255.
Boot ROM will use this information running BOOTP by taking
00:80:E1:00:xx:01 as MAC address and requesting xloader.bin file
in TFTP process.
"xx" is the hexadecimal value of the binary number H[7:0].
[19:16]
B
Informs the hardware about the peripheral used for booting: USB,
Ethernet or memories.
[15:00]
Magic Number
0x1C8C