Reserved. Note: all test modes are reserved for SMSC use. Activating test mode registers may produce undesired
results.
Table 38 - CR11
BIT NO.
BIT NAME
Test 16
Test 17
Test 18
Test 19
Test 20
Test 21
Test 22
Test 23
DESCRIPTION
0
1
2
3
4
5
6
7
RESERVED FOR SMSC USE
7.3.19 CR12 - CR13
CR12 - CR13 are reserved and Read Only. The default value of these registers after power up is 00H.
7.3.20 CR14
(Reserved).
7.3.21 CR15
CR15 can only be accessed in the configuration state and after the CSR has been initialized to 15H. CR15 shadows
the bits in the write-only UART1 run-time FCR register (Table 39).
Table 39 - CR15: UART1 FCR Shadow Register
D7
D6
D5
D4
D3
D2
D1
D0
Defaul
t
CR
15
R
RCVR
TRIGGER
MSB
RCVR
TRIGGE
R LSB
Reserved
DMA
XMIT
FIFO
RCVR
FIFO
RESE
T
FIFO
ENABL
E
N/A
MODE
SELECT RESE
T
7.3.22 CR16
CR161 can only be accessed in the configuration state and after the CSR has been initialized to 16H. CR16 shadows
the bits in the write-only UART2 run-time FCR register (Table 40).
Table 40 - CR16: UART2 FCR Shadow Register
D7
D6
D
5
D4
D3
D2
D1
D0
Default
RCVR
TRIGGE
R MSB
RCVR
TRIGGER
LSB
DMA
XMIT
FIFO
RCVR
FIFO
CR16
R
Reserved
MODE
FIFO
N/A
SELECT RESET RESET ENABLE
7.3.23 CR17
(Reserved). The default value of this register after power up is 003H.
7.3.24 CR18 - CR1D
CR18 - CR1D registers are Reserved and Read Only . The default value of these registers after power up is 00H.
SMSC DS – SP37E760
Page 54
Rev. 04/13/2001
SMSC [ SMSC CORPORATION ]
