MC68HC05L28 Datasheet, PDF (43/156 Pages) Motorola, Inc – Flexible general-purpose microcomputer

Table 3-2 Register outline
Register Name
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State on
Reset
Timer counter high (TCH)
Timer counter low (TCL)
$0028
$0029
1111 1111
1111 1100
3
Alternate counter high (ACH)
$002A
1111 1111
Alternate counter low (ACL)
$002B
1111 0011
Timer control 1 (TCR1)
$002C IC1IE IC2IE OC1IE TOIE CO1E IEDG1 IEDG2 OLV1 0000 0uu0
Timer control 2 (TCR2)
$002D
OC2IE
CO2E
OLV2 0000 0000
Timer status (TSR)
$002E IC1F IC2F OC1F TOF TCAP1 TCAP2 OC2F
uuuu 11u0
Reserved
$002F
Port D data (PORTD)
$0030
unaffected
Port D data direction (DDRD)
$0031
DDRD5 DDRD4 DDRD3 DDRDD2 DDR1 DDRD0 ??00 0000
Port D control (COND)
$0032
COND5 COND4 COND3 COND2 COND1 COND0 ??00 0000
Port D select (SELD)
$0033
PD5/
SCL0
PD4/
SDA0
PD3/
TCMP2
PD2/
TCAP2
PD1/ PD0/
TCMP1 TCAP1
??00 0000
Reserved
$34–$3F
(1) MC68HC705L28 only
MC68HC05L28
MEMORY AND REGISTERS
TPG
MOTOROLA
3-7