Control Register; Table 25-10 Control Register Descriptions - Motorola DragonBall MC9328MX1 Reference Manual

Table 25-9. Port Control Register Descriptions (Continued)
Name
SVEN SIM Card Vcc Enable—Used to control the state of the SVEN pin
Bit 1 on SIM card. The SVEN pin controls the SIM card Vcc enable in
the GCAP chip. It can be forced low by hardware during the auto
powerdown sequence.
SAPD SIM Card Auto Powerdown—Used to enable/disable the auto
Bit 0 powerdown function. It will be forced low at the end of the auto
powerdown sequence.

25.6.2 Control Register

The Control Register (CNTL) provides selection and control of SIM clock sources, LRC and CRC
operation, as well as other module functions. The bit descriptions and settings for the Control Register are
provided in Table 25-10.
CNTL
BIT 31 30
TYPE r r
0 0
RESET
BIT 15 14
XMT_
CRC_ CRCEN LRCEN CWTEN
LRC
TYPE r rw
0 0
RESET
Name
Reserved Reserved—These bits are reserved and should read 0.
Bits 31–16
XMT_CRC_LR Transmit CRC or LRC—Controls whether or not
C to transmit the redundancy check data at the end
Bit 15 of a transmission (when the FIFO becomes
empty).
MOTOROLA
Description
Control Register
29 28 27 26
r r r r
0 0 0 0
13 12 11 10
GPCNT_
CLK_SEL
rw rw rw
0 0 0
Table 25-10. Control Register Descriptions
Description
SmartCard Interface Module (SIM)
0=SIM card voltage disabled
1=SIM card voltage enabled
0 = Auto powerdown disabled
1 = Auto powerdown enabled
25 24 23 22 21 20
r r r r r r
0 0 0 0 0 0
0x0000
9 8 7 6 5 4
BAUD_SEL CLK_SEL
rw rw
0 0
0x0006
0 = No redundancy check info transmitted
1 = Transmit CRC or LRC (whichever is
enabled) info when the FIFO empties
Programming Model
Settings
Addr
0x00211004
19 18 17 16
r r r r
0 0 0 0
3 2 1 0
ONACK ANACK ICM IC
rw rw rwm rwm
0 1 1 0
Settings
25-23