mc9s08dz32 Freescale Semiconductor, Inc, mc9s08dz32 Datasheet - Page 310

• Manufacturer Part Number: mc9s08dz32
• Description: Hcs08 Microcontrollers 8-bit Can Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 15 Real-Time Counter (S08RTCV1)
15.1.4
The block diagram for the RTC module is shown in
15.2
The RTC does not include any off-chip signals.
15.3
The RTC includes a status and control register, an 8-bit counter register, and an 8-bit modulo register.
Refer to the direct-page register summary in the memory section of this data sheet for the absolute address
assignments for all RTC registers.This section refers to registers and control bits only by their names and
relative address offsets.
Table 15-1
310
BACKGROUND
MODE
ERCLK
IRCLK
LPO
External Signal Description
Register Definition
RTCMOD
RTCCNT
RTCSC
is a summary of RTC registers.
Block Diagram
Name
RTCLKS[0]
PRESCALER
DIVIDE-BY
SOURCE
SELECT
CLOCK
RTCLKS
Figure 15-2. Real-Time Counter (RTC) Block Diagram
RTCPS
W
W
W
R
R
R
RTC
CLOCK
Table 15-1. RTC Register Summary
MC9S08DZ60 Series Data Sheet, Rev. 3
RTIF
7
8-BIT COMPARATOR
8-BIT COUNTER
8-BIT MODULO
6
RTCLKS
(RTCMOD)
(RTCCNT)
Figure
5
15-2.
RTIE
4
RTCMOD
RTCCNT
V
DD
E
Write 1 to
D
RTIF
R
3
Q
RTIE
2
Freescale Semiconductor
RTCPS
RTIF
1
RTC
INTERRUPT
REQUEST
0