Table D-17 MC68331 Module Address Map
(Assumes SIMCR MM = 1)
GPT
Access
S
Address 15
8 7
0
$FFF900
$FFF902
$FFF904
$FFF906
$FFF908
$FFF90A
$FFF90C
$FFF90E
$FFF910
$FFF912
$FFF914
$FFF916
$FFF918
$FFF91A
$FFF91C
$FFF91E
$FFF920
$FFF922
$FFF924
$FFF926
$FFF928
$FFF92A
$FFF92C
GPT MODULE CONFIGURATION (GPTMCR)
(RESERVED FOR TEST)
S
S
INTERRUPT CONFIGURATION (ICR)
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
S/U
PGP DATA DIRECTION (DDRGP)
PGP DATA (PORTGP)
OC1 ACTION MASK (OC1M)
OC1 ACTION DATA (OC1D)
TIMER COUNTER (TCNT)
PA CONTROL (PACTL)
PA COUNTER (PACNT)
INPUT CAPTURE 1 (TIC1)
INPUT CAPTURE 2 (TIC2)
INPUT CAPTURE 3 (TIC3)
OUTPUT COMPARE 1 (TOC1)
OUTPUT COMPARE 2 (TOC2)
OUTPUT COMPARE 3 (TOC3)
OUTPUT COMPARE 4 (TOC4)
INPUT CAPTURE 4/OUTPUT COMPARE 5 (TI4/O5)
D
TIMER CONTROL 1 (TCTL1)
TIMER CONTROL 2 (TCTL2)
TIMER MASK 2 (TMSK2)
TIMER FLAG 2 (TFLG2)
TIMER MASK 1 (TMSK1)
TIMER FLAG 1 (TFLG1)
FORCE COMPARE (CFORC)
PWM CONTROL A (PWMA)
PWM CONTROL C (PWMC)
PWM CONTROL B (PWMB)
PWM COUNT (PWMCNT)
PWMA BUFFER (PWMBUFA)
PWMB BUFFER (PWMBUFB)
GPT PRESCALER (PRESCL)
$FFF92E –
$FFF93F
NOT USED
SIM
Access
S
Address 15
$FFFA00
$FFFA02
$FFFA04
$FFFA06
$FFFA08
$FFFA0A
$FFFA0C
$FFFA0E
$FFFA10
$FFFA12
$FFFA14
$FFFA16
$FFFA18
$FFFA1A
$FFFA1C
$FFFA1E
$FFFA20
8 7
0
MODULE CONFIGURATION (SIMCR)
FACTORY TEST (SIMTR)
S
S
CLOCK SYNTHESIZER CONTROL (SYNCR)
S
NOT USED
RESET STATUS (RSR)
MODULE TEST E (SIMTRE)
S
S
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
S
S
S/U
S/U
S/U
S
PORTE DATA (PORTE0)
PORTE DATA (PORTE1)
PORTE DATA DIRECTION (DDRE)
PORTE PIN ASSIGNMENT (PEPAR)
PORTF DATA (PORTF0)
S/U
S/U
S/U
S
PORTF DATA (PORTF1)
PORTF DATA DIRECTION (DDRF)
PORTF PIN ASSIGNMENT (PFPAR)
S
SYSTEM PROTECTION CONTROL
(SYPCR)
S
$FFFA22
PERIODIC INTERRUPT CONTROL (PICR)
MC68331
REGISTER SUMMARY
MOTOROLA
D-37
USER’S MANUAL
MOTOROLA [ MOTOROLA ]
