REGISTER SUMMARY
MC68332
D-12
USER’S MANUAL
D.2.18 TSTSC
— Test Module Shift Count
$YFFA34
Register is used for factory test only.
D.2.19 TSTRC
— Test Module Repetition Count
$YFFA36
Register is used for factory test only.
D.2.20 CREG
— Test Submodule Control Register
$YFFA38
Register is used for factory test only.
D.2.21 DREG
— Distributed Register
$YFFA3A
Register is used for factory test only.
D.2.22 PORTC
— Port C Data Register
$YFFA41
PORTC latches data for chip-select pins that are used for discrete output.
D.2.23 CSPAR0
— Chip Select Pin Assignment Register 0
$YFFA44
Contains seven 2-bit fields, CSPA0[6:1] and CSBOOT, that determine the functions of
corresponding chip-select pins. CSPAR0[15:14] are not used. These bits always read
zero; write has no effect. CSPAR0 bit 1 always reads one; writes to CSPAR0 bit 1 have
no effect. The alternate functions can be enabled by data bus mode selection during
reset.
15
8
7
6
5
4
3
2
1
0
NOT USED
0
PC6
PC5
PC4
PC3
PC2
PC1
PC0
RESET:
0
1
1
1
1
1
1
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
CSPA0[6]
CSPA0[5]
CSPA0[4]
CSPA0[3]
CSPA0[2]
CSPA0[1]
CSBOOT
RESET:
0
0
DATA2
1
DATA2
1
DATA2
1
DATA1
1
DATA1
1
DATA1
1
1
DATA0
CSPAR0 Pin Assignments
CSPAR0 Field
CSPAR0 Signal
Alternate Signal
Discrete Output
CSPA0[6]
CS5
FC2
PC2
CSPA0[5]
CS4
FC1
PC1
CSPA0[4]
CS3
FC0
PC0
CSPA0[3]
CS2
BGACK
—
CSPA0[2]
CS1
BG
—
CSPA0[1]
CS0
BR
—
CSBOOT
CSBOOT
—
—
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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