Freescale Semiconductor MC9S08PT60, Reference Manual

Page: 585 / 679

21.3.3 TSI Control and Status Register 2 (TSI_CS2)
Address: 8h base + 2h offset = Ah
Bit 7 6 5 4 3 2 1 0
Read
REFCHRG DVOLT EXTCHRG
Write
Reset 0 0 0 0 0 0 0 0
TSI_CS2 field descriptions
Field Description
7–5
REFCHRG
REFCHRG
These bits indicate the reference oscillator charge and discharge current value.
000 500 nA.
001 1 μ A.
010 2 μ A.
011 4 μ A.
100 8 μ A.
101 16 μ A.
110 32 μ A.
111 64 μ A.
4–3
DVOLT
DVOLT
These bits indicate the oscillator's voltage rails as below.
00
Δ
V = 1.03 V; V
P
= 1.33 V; V
m
= 0.30 V.
01
Δ
V = 0.73 V; V
P
= 1.18 V; V
m
= 0.45 V.
10
Δ
V = 0.43 V; V
P
= 1.03 V; V
m
= 0.60 V.
11
Δ
V = 0.29 V; V
P
= 0.95 V; V
m
= 0.67 V.
EXTCHRG EXTCHRG
These bits indicate the electrode oscillator charge and discharge current value.
000 500 nA.
001 1 μ A.
010 2 μ A.
011 4 μ A.
100 8 μ A.
101 16 μ A.
110 32 μ A.
111 64 μ A.
Chapter 21 Touch Sense Input (TSI)
MC9S08PT60 Reference Manual, Rev. 4, 08/2014
Freescale Semiconductor, Inc. 585