BRICBOX

Drift chamber readout module (see also BRIC)

Maximum supported branch length: 30 readout cards.

BRICBOX send Link Control Frame (LCF) with used defined bits 8:15 as following:

bit	description (send)
0	Suspend (receive buffer is full)
1	Enable remote data loopback **
2	reserved, 0
3	Local Error state
4	Local Ready state
5	Local RX error
7:6	reserved
8	b1_absent
9	b2_absent
10	b1_overflow
11	b2_overflow
12	b1_align_err
13	b2_align_err
14	b1_timeout
15	b2_timeout
31:16	Inverted 15:0

Card autodetect is performed on power-on reset and link reset (5CE) and absent bits are updated.

Status bits (rx error, absent, overflow, align_err, timeout) are cleared on reset (power, 5CE).

Status bits overflow, align_err, timeout are also cleared right after LCF is sent.

Local error = b1_absent & b2_absent

Cable for BRICBOX: ELTRA(37) to IDC-34